This article discusses the fictional timeline of the ''

Star Trek ''Star Trek'' is an American science fiction media franchise created by Gene Roddenberry, which began with the eponymous 1960s television series and quickly became a worldwide pop-culture phenomenon. The franchise has expanded into vari ...

'' franchise. The franchise is primarily set in the future, ranging from the mid-22nd century (''

Star Trek: Enterprise ''Star Trek: Enterprise'', titled simply ''Enterprise'' for its first two seasons, is an American science fiction television series created by Rick Berman and Brannon Braga. It originally aired from September 26, 2001, to May 13, 2005 on Uni ...

'') to the late 24th century ('' Star Trek: Picard''), with the third season of '' Star Trek: Discovery'' jumping forward to the 32nd century. However the franchise has also outlined a fictional

future history A future history is a postulated history of the future and is used by authors of science fiction and other speculative fiction to construct a common background for fiction. Sometimes the author publishes a timeline of events in the history, whi ...

of Earth prior to this, and, primarily through

time travel Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device known as a time machine. Time travel is a w ...

plots, explored both past and further-future settings. The chronology is complicated by the presence of divergent timelines within the franchise's narrative, as well as internal contradictions and

retcon Retroactive continuity, or retcon for short, is a literary device in which established diegetic facts in the plot of a fictional work (those established through the narrative itself) are adjusted, ignored, supplemented, or contradicted by a subse ...

s. The

original series Original programming (also called originals or original programs, and subcategorized as "original series", "original movies", "original documentaries" and "original specials") is a term used for in-house television, film or web series productions ...

generally avoided assigning real-world dates to its futuristic setting, instead using the

stardate ''StarDate'' is a science radio program of The University of Texas at Austin McDonald Observatory, broadcast on over 360 radio stations. It is a daily guide to the night sky and breaking astronomical news. Typically heard without formal introdu ...

system. Series from '' Star Trek: The Next Generation'' onwards defined their temporal settings in conventional form.

Series, books, and film settings

This table shows each TV series and movie, its year of release or broadcast, the year it was set in according to the prevailing Okuda chronology (see below), and the

range for that year. The designation ''

Enterprise Enterprise (or the archaic spelling Enterprize) may refer to: Business and economics Brands and enterprises * Enterprise GP Holdings, an energy holding company * Enterprise plc, a UK civil engineering and maintenance company * Enterpris ...

''-based series are the series that featured the various incarnations of the starship USS ''Enterprise''. In universe timeline chronological order ''

'' (ENT), ''

Star Trek: The Original Series ''Star Trek'' is an American science fiction television series created by Gene Roddenberry that follows the adventures of the starship and its crew. It later acquired the retronym of ''Star Trek: The Original Series'' (''TOS'') to distinguis ...

'' (TOS), '' Star Trek: The Animated Series'' (TAS), '' Star Trek: The Next Generation'' (TNG), and all 13 of the ''Star Trek'' feature films, including the three newest

J. J. Abrams Jeffrey Jacob Abrams (born June 27, 1966) is an American filmmaker and composer. He is best known for his works in the genres of action, drama, and science fiction. Abrams wrote and produced such films as '' Regarding Henry'' (1991), '' F ...

"reboot" films, or "Kelvin Timeline" based on the original series.

Timeline in order of series air dates

Chronology and events

This timeline is based on the ''Star Trek Chronology'' model described below, supplemented by data from the website startrek.com. The Timeline also consists of before, between, and after those events. Note: Many of these dates are rounded-off approximations, as the dialog from which they are derived often includes qualifiers such as "over," "more than," or "less than."

Before Common Era

*The

Big Bang The Big Bang event is a physical theory that describes how the universe expanded from an initial state of high density and temperature. Various cosmological models of the Big Bang explain the evolution of the observable universe from the ...

**Quinn hides in the big bang to avoid discovery by Q. *c. 6 billion years ago **The

Guardian of Forever "The City on the Edge of Forever" is the twenty-eighth and penultimate episode of the first season of the American science fiction television series '' Star Trek''. Written by Harlan Ellison, contributors and/or editors to the script included ...

is formed. *c. 4 billion years ago **A humanoid civilization seeds the oceans of many planets with genetic material, which would lead to the development of humanoids on many planets. *c. 65 to 100 million years ago **The dinosaurs (the Voth civilization) from the episode "

Distant Origin "Distant Origin" is the 65th episode of '' Star Trek: Voyager'', the 23rd episode of the third season. ''Voyager'' encounters an alien race, but runs afoul of their principles. The Voth are humanoid lizards, and the plot revolves around one partic ...

" are most likely descendants of

Hadrosaurid Hadrosaurids (), or duck-billed dinosaurs, are members of the ornithischian family Hadrosauridae. This group is known as the duck-billed dinosaurs for the flat duck-bill appearance of the bones in their snouts. The ornithopod family, which inclu ...

s who lived in the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

period of Earth's history. *c. 1 million years ago ** Sargon's people explore the galaxy and colonize various planets, possibly including

Vulcan Vulcan may refer to: Mythology * Vulcan (mythology), the god of fire, volcanoes, metalworking, and the forge in Roman mythology Arts, entertainment and media Film and television * Vulcan (''Star Trek''), name of a fictional race and their home p ...

. *c. 600,000 years ago **The Tkon Empire, an interstellar state consisting of dozens of star systems in the

Alpha Quadrant Several films and episodes of the science fiction franchise ''Star Trek'' are set in distinct astrographical regions of space. Some of these fictional locations exhibit anomalous physical properties; others are defined as sensitive buffer zones ...

, becomes extinct. *c. 200,000 years ago **The Iconian civilization is destroyed. *c. 8,000 BCE **The

Dominion The term ''Dominion'' is used to refer to one of several self-governing nations of the British Empire. "Dominion status" was first accorded to Canada, Australia, New Zealand, Newfoundland, South Africa, and the Irish Free State at the 1926 ...

may have been founded in the Gamma Quadrant by the shapeshifting race known as the

Changelings A changeling, also historically referred to as an auf or oaf, is a human-like creature found in folklore throughout Europe. A changeling was believed to be a fairy that had been left in place of a human (typically a child) stolen by other fairi ...

around this time, possibly in a different form than is known in the modern timeline. *c. 2700 BCE **A group of extraterrestrial beings land on Earth and are eventually known as the Greek gods, as established in the episode "

Who Mourns for Adonais? "Who Mourns for Adonais?" is the second episode of the second season of the American science fiction television series '' Star Trek''. Written by Gilbert Ralston and Gene L. Coon, and directed by Marc Daniels, it was first broadcast September 2 ...

1st millennium of the Common Era

*c. 4th century CE **The

Time of Awakening. In the midst of horrific wars on Vulcan, the philosopher Surak leads his people, teaching them to embrace logic and suppress all emotion. **The

may have been founded in the Gamma Quadrant by the shapeshifting race known as the

(founders) around this time. *c. 9th century **

Kahless Kahless the Unforgettable ( ''Klingon'': qeylIS'e' lIjlaHbe'bogh vay') is a fictional character in the ''Star Trek'' universe. He is portrayed in ''Star Trek: The Original Series'' by Robert Herron and in '' Star Trek: The Next Generation'' by ...

the Unforgettable unites the Klingons by defeating the tyrant Molor in battle, and provides his people with teachings based on a philosophy of honor.

Pre-20th century

*c. 1505 **The Borg are known to exist in the Delta Quadrant, 900 years prior to Voyager landing on the planet as referenced by the Vaadwaur " Dragon's Teeth" (VOY). *c. 1570 **The ancient

Bajoran The Bajorans (variously pronounced , , ) are a fictional species in the science-fiction ''Star Trek'' franchise. They are a humanoid extraterrestrial species native to the planet Bajor, who have a long-standing enmity with the Cardassians, owi ...

s use

solar sail Solar sails (also known as light sails and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight on large mirrors. A number of spaceflight missions to test solar propulsion and navigation have been p ...

ships to explore their

star system A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. A large group of stars bound by gravitation is generally called a '' star cluster'' or '' galaxy'', although, broadly speak ...

, and one may have reached

Cardassia The Cardassians () are a fictional extraterrestrial species in the American science fiction franchise ''Star Trek''. They were devised in 1991 for the series '' Star Trek: The Next Generation'' before being used in the subsequent series '' St ...

. *18th century **The

Suliban ''Star Trek: Enterprise'', titled simply ''Enterprise'' for its first two seasons, is an American science fiction television series created by Rick Berman and Brannon Braga. It originally aired from September 26, 2001, to May 13, 2005 on U ...

homeworld becomes uninhabitable (" Detained" (ENT)). **The Preservers transport various Native Americans to a faraway planet. *c. 1864 **The Skagarans abduct humans for use as slaves in their colony world (as referred to in ''Enterprise'' Season 3: "

North Star Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris ( Latinized to ''Alpha Ursae Minoris'') and is commonly called the North Star or Pole Star. With an apparent magnitude that ...

"). *c. 1871 **The

Cardassian Union The Cardassians () are a fictional extraterrestrial species in the American science fiction franchise '' Star Trek''. They were devised in 1991 for the series '' Star Trek: The Next Generation'' before being used in the subsequent series '' S ...

is established. * 1888 ** August 31:

Jack the Ripper Jack the Ripper was an unidentified serial killer active in and around the impoverished Whitechapel district of London, England, in the autumn of 1888. In both criminal case files and the contemporaneous journalistic accounts, the killer wa ...

's first victim is found murdered and mutilated in

East London East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the f ...

(as referred to in ''Star Trek: The Original Series'' Season 2: "

Wolf in the Fold "Wolf in the Fold" is the fourteenth episode of the second season of the American science fiction television series '' Star Trek''. Written by Robert Bloch and directed by Joseph Pevney, it was first broadcast on December 22, 1967. In the epi ...

"). *c. 1893 ** "

Time's Arrow Time's Arrow may refer to: * "Time's Arrow" (short story), a 1950 short story by Arthur C. Clarke * ''Time's Arrow'' (novel), a 1991 novel by Martin Amis * "Time's Arrow" (''Star Trek: The Next Generation''), a 1992 two-part episode of ''Star Trek: ...

" (TNG).

20th century

* 1918 **

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

ends with 6 million dead ("

Bread and Circuses "Bread and circuses" (or bread and games; from Latin: ''panem et circenses'') is a metonymic phrase referring to superficial appeasement. It is attributed to Juvenal, a Roman poet active in the late first and early second century CE, and is used c ...

(TOS)"). * 1930 ** "

The City on the Edge of Forever "The City on the Edge of Forever" is the twenty-eighth and penultimate episode of the first season of the American science fiction television series '' Star Trek''. Written by Harlan Ellison, contributors and/or editors to the script included ...

" (TOS). * 1937 ** Several hundred humans are secretly abducted by an alien race known as the Briori and brought to the

Delta Quadrant Several films and episodes of the science fiction franchise ''Star Trek'' are set in distinct astrographical regions of space. Some of these fictional locations exhibit anomalous physical properties; others are defined as sensitive buffer zones ...

. Eight are cryogenically frozen, including long-lost pilot

Amelia Earhart Amelia Mary Earhart ( , born July 24, 1897; disappeared July 2, 1937; declared dead January 5, 1939) was an American aviation pioneer and writer. Earhart was the first female aviator to fly solo across the Atlantic Ocean. She set many oth ...

The 37's "The 37's" is the first episode of the Star Trek: Voyager (season 2), second season, and seventeenth episode overall, of the American science fiction on television, science fiction television series ''Star Trek: Voyager''. Due to differing rele ...

" (VOY)). * 1944 ** " Storm Front" (ENT). * 1945 **

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

ends with 11 million dead ("

(TOS)"). **The

United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and international security, security, develop friendly relations among nations, achieve international cooperation, and be ...

is established in San Francisco but its headquarters moves to

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

. * 1947 ** Three

Ferengi The Ferengi () are a fictional extraterrestrial species in the American science fiction franchise ''Star Trek''. They were devised in 1987 for the series '' Star Trek: The Next Generation'', played a prominent role in the following series '' St ...

(

Quark A quark () is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. All commonly o ...

Rom Rom, or ROM may refer to: Biomechanics and medicine * Risk of mortality, a medical classification to estimate the likelihood of death for a patient * Rupture of membranes, a term used during pregnancy to describe a rupture of the amniotic sac * ...

, and Nog) crash land in the New Mexico desert, and are held by the U.S. government at a

secret base ''SB Nation'' (an abbreviation for their full name ''SportsBlogs Nation'') is a sports blogging network owned by Vox Media. It was co-founded by Tyler Bleszinski, Markos Moulitsas, and Jerome Armstrong in 2005. The blog from which the network ...

for scientific study ("

Little Green Men Little green men is the stereotypical portrayal of extraterrestrials as little humanoid creatures with green skin and sometimes with antennae on their heads. The term is also sometimes used to describe gremlins, mythical creatures known for cau ...

" (DS9)). * 1957 **A Vulcan scout ship visits Earth, according to a story told by T'Pol (presumably a true story as T'Pol examines a purse which was portrayed as used by her great-great-grandmother during the story; see episode entry) (" Carbon Creek" (ENT)). * 1967 **

Captain Braxton Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...

's 29th century Federation timeship ''Aeon'' crashlands on Earth ("

Future's End "Future's End" is a two-part episode from the third season of the American science fiction television series '' Star Trek: Voyager'', the eighth and ninth of the season and the 50th and 51st overall. "Future's End" made its debut on American t ...

" (Voyager)). * 1968 ** " Assignment: Earth" (TOS) past events. * 1969 ** "

Tomorrow Is Yesterday "Tomorrow Is Yesterday" is the nineteenth episode of the first season of the American science fiction television series ''Star Trek''. Written by D. C. Fontana and directed by Michael O'Herlihy, it first aired on January 26, 1967. It was the f ...

" (TOS) past events. * 1986 ** '' Star Trek IV: The Voyage Home'' past events. * 1992 ** The

Eugenics Wars This article discusses the fictional timeline of the ''Star Trek'' franchise. The franchise is primarily set in the future, ranging from the mid-22nd century ('' Star Trek: Enterprise'') to the late 24th century ('' Star Trek: Picard''), with the ...

(WWIII) begin.Dates are given in dialogue in "

Space Seed "Space Seed" is the twenty-second episode of the first season of the American science fiction television series ''Star Trek''. Written by Gene L. Coon and Carey Wilber and directed by Marc Daniels, it first aired on February 16, 1967. In the e ...

" (WWIII is retconned to be in the 2050s by ''TNG''s ''Encounter at Farpoint'' and ''Star Trek First Contact'' and to being a conflict separate from the Eugenics Wars; ''DS9''s "Doctor Bashir, I Presume?" retcons the Eugenics Wars as being in the 22nd century. ''SNW''s "Strange New World" retcons it again to taking place in the 21st century, prior to WWIII.) * 1996 ** The Eugenics Wars end. (WWIII is retconned to be in the 2050s by ''TNG''s "Encounter at Farpoint" and ''Star Trek First Contact''; ''DS9''s "Doctor Bashir, I Presume?" retcons the Eugenics Wars as being in the 22nd century. ''SNW''s "Strange New World" retcons it again to taking place in the 21st century prior to WWIII.) ** "

" (VOY). ** the SS Botany Bay is stolen by a group of about 80 or 90 augments ("

" (TOS)). * 1999 ** '' Voyager 6'' is launched. * 2000 ** The past events of " 11:59" (VOY).

21st century

* 2002 ** The interstellar probe ''

Nomad A nomad is a member of a community without fixed habitation who regularly moves to and from the same areas. Such groups include hunter-gatherers, pastoral nomads (owning livestock), tinkers and trader nomads. In the twentieth century, the popu ...

'' is launched. * 2004 ** The past events of " Carpenter Street" (ENT). * 2009 ** The first successful Earth-Saturn probe takes place. * 2012 ** The world's first self-sustaining civic environment, Millennium Gate, which became the model for the first habitat on Mars, completed in Portage Creek, Indiana (" 11:59" (VOY)). * 2018 ** Sleeper ships are made obsolete. * 2024 ** A

united Ireland United Ireland, also referred to as Irish reunification, is the proposition that all of Ireland should be a single sovereign state. At present, the island is divided politically; the sovereign Republic of Ireland has jurisdiction over the maj ...

is achieved (''TNG'' " The High Ground"). ** The past events of "

Past Tense The past tense is a grammatical tense whose function is to place an action or situation in the past. Examples of verbs in the past tense include the English verbs ''sang'', ''went'' and ''washed''. Most languages have a past tense, with some hav ...

" (DS9), namely the "Bell Riots". ** The past events of '' Star Trek: Picard'' Season 2. * 2026 **

World War III World War III or the Third World War, often abbreviated as WWIII or WW3, are names given to a hypothetical World war, worldwide large-scale military conflict subsequent to World War I and World War II. The term has been in use ...

begins on

Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...

Colonel Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...

Green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 Nanometre, nm. In subtractive color systems, used in painting and color printing, it is created by ...

and a group of

eco-terrorist Eco-terrorism is an act of violence which is committed in support of environmental causes, against people or property. The United States Federal Bureau of Investigation (FBI) defines eco-terrorism as "...the use or threatened use of violence o ...

s commit

genocide Genocide is the intentional destruction of a people—usually defined as an ethnic, national, racial, or religious group—in whole or in part. Raphael Lemkin coined the term in 1944, combining the Greek word (, "race, people") with the Latin ...

that claimed the lives of thirty-seven million people. (''ENT'' " In A Mirror Darkly, Part Two") (In TOS, WWIII took place in the 1990s and is established as an alternate name for the Eugenics Wars while DS9's "Doctor Bashir, I Presume?" had the Eugenics Wars in the 22nd century. SNW's "Strange New World" retcons the Eugenics Wars to the 21st century, but prior to the outbreak of WWIII.) * 2032 ** Ares IV, a crewed mission to Mars is launched. ** Zefram Cochrane is born. * 2037 ** The spaceship ''Charybdis'' makes an attempt to leave the solar system. *2047 ** The Hermosa quake strikes the region of southern California surrounding

Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...

. The land sinks under two hundred meters of water. In the ensuing centuries, the region recovers, having transformed into one of the world's largest coral reefs. These reefs become home to thousands of different marine species. *2053 **

ends and

is left devastated, mostly because of nuclear warfare. Most of the major cities are left in ruins with few remaining governments and the death total reaching 600 million. Scientific advancement continues, however. (In TOS, WWIII took place in the 1990s and is established as an alternate name for the Eugenics Wars while DS9's "Doctor Bashir, I Presume?" had the Eugenics Wars in the 22nd century. SNW's "Strange New World" retcons the Eugenics Wars to the 21st century, but prior to the outbreak of WWIII.) * 2062 ** Oldtown San Francisco is struck by an enormous earthquake, the Greater Quake, and it takes 20 years for the city to be restored. * 2063 ** The past events of '' Star Trek: First Contact''. Zefram Cochrane makes the first human warp flight with the ''

Phoenix Phoenix most often refers to: * Phoenix (mythology), a legendary bird from ancient Greek folklore * Phoenix, Arizona, a city in the United States Phoenix may also refer to: Mythology Greek mythological figures * Phoenix (son of Amyntor), a ...

'' as civilization rebuilds following WWIII. This attracts the

Vulcans Vulcans, sometimes referred to as Vulcanians, are a fictional extraterrestrial humanoid species in the '' Star Trek'' universe and media franchise. In the various ''Star Trek'' television series and films, they are noted for their attempt t ...

and they make first contact with humans. (TOS "

Metamorphosis Metamorphosis is a biological process by which an animal physically develops including birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. Some inse ...

" stated that Zefram Cochrane disappeared 150 years ago at the age of 87, which fits with the current timeline.) * c. 2065 ** The SS ''Valiant'' is launched. * 2067 ** The uncrewed interstellar warp probe ''Friendship 1'' is launched. * 2069 ** The colony ship SS ''Conestoga'' is launched. It would found the Terra Nova colony. * 2079 ** Earth begins to recover from its nuclear war. The recovery is aided and partially organized by a newly established political entity called the ''European Hegemony''. * 2088 **

T'Pol T'Pol () is a fictional character in the ''Star Trek'' franchise. Portrayed by Jolene Blalock in the series ''Star Trek: Enterprise'', she is a Vulcan who serves as the science officer aboard the starship ''Enterprise'' (NX-01). Concept and cr ...

is born.

22nd century

* 2103 ** Earth colonizes Mars. * 2112 **

Jonathan Archer Jonathan Archer is a fictional character in the ''Star Trek'' franchise. He is the protagonist of the television series ''Star Trek: Enterprise'', where he is portrayed by Scott Bakula. Archer is the commanding officer of the first starship ' ...

is born in upstate New York on Earth.From a computer screen in "

In a Mirror, Darkly "In a Mirror, Darkly" is the eighteenth and nineteenth episodes of the Star Trek: Enterprise (season 4), fourth season of the American science fiction television series ''Star Trek: Enterprise'', and originally aired on April 22 and 29 ...

" *2119 ** Zefram Cochrane, who now is residing on

Alpha Centauri Alpha Centauri ( Latinized from α Centauri and often abbreviated Alpha Cen or α Cen) is a triple star system in the constellation of Centaurus. It consists of 3 stars: Alpha Centauri A (officially Rigil Kentaurus), Alpha Centaur ...

, sets off for parts unknown and disappears. Some had thought he was testing a new engine. After an exhaustive search, it is believed that Cochrane has died. He becomes one of the most famous missing people in history. * 2129 **

Hoshi Sato Hoshi Sato , played by Korean American actress Linda Park, is a fictional character in the science fiction television series ''Star Trek: Enterprise''. In the show Sato, born in Kyoto, Japan on July 9, 2129, is the communications officer aboard ...

is born. * 2130 ** The United Nations preposes a new fleet must be installed to explore the wonders beyond space and creation itself and Starfleet Command is born with San Francisco as its headquarters. * 2142 ** Warp 2 Barrier broken by Commander Robinson in NX ''Alpha'' and Warp 2.5 achieved by Commander Archer in NX ''Beta''. * 2145 ** Warp 3 Broken by Commander Duvall in NX ''Delta''. * 2149 ** The USS Enterprise (NX-01) is under construction in upstate New York. * 2150 ** Keel laid for ''Enterprise'' (NX-01). * 2151–2155 ** The events of ''

'' take place. * 2155 ** The USS ''Defiant'', a Constitution-class vessel from the Prime Universe in 2268, travels back in time and also emerges in the Mirror Universe following its interaction with an anomaly. The abandoned ''Defiant'' is found by the Tholians. The Terran Empire learns of the ship's existence and subsequently captures it for their own use. * 2156–2160 ** The Earth–Romulan War is fought between United Earth and its allies, and the

Romulan Star Empire The Romulans () are an extraterrestrial race in the American science fiction franchise '' Star Trek''. They first appeared in the series '' Star Trek'' (1966–1969). They have appeared in most subsequent ''Star Trek'' releases, including '' The ...

. The war ends with the Battle of Cheron, which results in Earth inflicting a humiliating defeat to the Romulans, to such a degree that the Empire still considers the battle an embarrassment over 200 years later. The

Romulan Neutral Zone Several films and episodes of the science fiction franchise ''Star Trek'' are set in distinct astrographical regions of space. Some of these fictional locations exhibit anomalous physical properties; others are defined as sensitive buffer zones ...

is established. * 2161 **The

United Federation of Planets In the fictional universe of ''Star Trek'' the United Federation of Planets (UFP) is the interstellar government with which, as part of its space force Starfleet, most of the characters and starships of the franchise are affiliated. Commonly refe ...

is founded by

, Tellar,

Andoria "Kir'Shara" is the ninth episode of the fourth season of the American science fiction television series '' Star Trek: Enterprise''. It was writer Michael Sussman's third episode of the season, while it was director David Livingston's second. T ...

, and

. * 2165 **

Sarek Sarek is a fictional character in the ''Star Trek'' media franchise. He is a Vulcan astrophysicist, the Vulcan ambassador to the United Federation of Planets, and father of Spock. The character was originally played by Mark Lenard in the e ...

, Federation diplomat and father of

Spock Spock is a Character (arts), fictional character in the ''Star Trek'' media franchise. He first appeared in the Star Trek: The Original Series, original ''Star Trek'' series serving aboard the starship USS Enterprise (NCC-1701), USS ''Enterprise ...

, is born on Vulcan. * 2184 ** Johnathan Archer is elected as the first United Federation of Planets President. * 2192 ** Johnathan Archer steps down as UFP President over 8 years. * 2195 ** Robert April is born. * 2160s to 2196 ** The Daedalus class starship is active.

23rd century

* 2222 **

Montgomery Scott Montgomery "Scotty" Scott is a fictional character in the science fiction franchise ''Star Trek''. First portrayed by James Doohan in the original ''Star Trek'' series, Scotty also appears in the animated ''Star Trek'' series, 10 ''Star Trek' ...

is born in

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the ...

. * 2226 **

Michael Burnham Michael Burnham is the fictional protagonist on '' Star Trek: Discovery'' portrayed by American actress Sonequa Martin-Green. She originally appears as the First Officer of USS ''Shenzhou'' under Philippa Georgiou (Michelle Yeoh) until she com ...

is born on Earth. * 2227 **

Leonard McCoy Dr. Leonard H. McCoy, known as "Bones", is a character in the American science-fiction franchise ''Star Trek''. McCoy was played by actor DeForest Kelley in the original ''Star Trek'' series from 1966 to 1969, and he also appears in the anim ...

is born in Georgia, North America on Earth. * 2230 **

, the son of Sarek and the human Amanda Grayson, is born on

. * 2232 ** The events of '' Star Trek: Short Treks'' episode "The Girl Who Made the Stars" take place. * 2233 **

James T. Kirk James Tiberius Kirk is a fictional character in the ''Star Trek'' media franchise. Originally played by Canadian actor William Shatner, Kirk first appeared in ''Star Trek'' serving aboard the starship USS ''Enterprise'' as captain. Kirk leads ...

is born in

Riverside Riverside may refer to: Places Australia * Riverside, Tasmania, a suburb of Launceston, Tasmania Canada * Riverside (electoral district), in the Yukon * Riverside, Calgary, a neighbourhood in Alberta * Riverside, Manitoba, a former rural m ...

Iowa Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the ...

on Earth. * 2233 (alternate timeline) ** Spock and the Romulan mining ship ''Narada'', commanded by Nero, emerge from a black hole created by Spock's detonation of red matter in 2387 and arrive in the past. Nero's arrival and subsequent attack on the USS ''Kelvin'' creates the Kelvin Timeline. ** James T. Kirk is born aboard a shuttlecraft from the USS ''Kelvin''. ** James T. Kirk's father, George Kirk, is killed. * 2238 ** The events of '' Star Trek: Short Treks'' episode "The Brightest Star" take place. * 2241 (alternate timeline) **

Pavel Chekov Pavel Andreievich Chekov (russian: Павел Андреевич Чехов) is a fictional character in the ''Star Trek'' universe. Walter Koenig portrayed Chekov in the second and third seasons of the original ''Star Trek'' series and the ...

born in Russia on Earth * 2245–2250 ** The USS ''Enterprise'', a Constitution class vessel is launched under the command of

Robert April Robert April is a fictional character in the '' Star Trek'' media franchise. April was the USS ''Enterprises first commanding officer, preceding Captain Christopher Pike. The character first appeared in the '' Star Trek: The Animated Series ...

, on a five-year mission of exploration. In the alternate time line created by

Nero Nero Claudius Caesar Augustus Germanicus ( ; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68), was the fifth Roman emperor and final emperor of the Julio-Claudian dynasty, reigning from AD 54 un ...

's attack on the USS ''Kelvin,'' the ''Enterprise'' is still under construction in 2255 and is not launched on its maiden voyage until 2258. * 2245 **

is born to

Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...

parents. In the alternate timeline created by

's attack on the USS ''Kelvin,'' Chekov is only eight years younger than James T. Kirk, implying a birthdate of 2241. * 2250 ** After a refit, the USS ''Enterprise'' (NCC-1701) is launched on a second five-year mission. Command of the ship is assigned to Captain Christopher Pike. * 2254 ** The events of '' Star Trek: Short Treks'' episode "Q&A" take place. ** The events of "

The Cage The Cage may refer to: Sports * West Fourth Street Courts, also known as "The Cage", as of 1978, a public venue for amateur basketball in New York City * Al-Shorta Stadium, 1990-2014, former football stadium of Al-Shorta SC, nicknamed "The Cage ...

". * 2256-2257 ** The events of '' Star Trek: Discovery'' season 1 take place, The Klingon Federation War. *2257-2258 **The events of '' Star Trek: Discovery'' season 2 take place. The USS ''Discovery'' and USS ''Enterprise'' (NCC-1701) engage in a pitched battle to neutralise the rogue AI Control. The battle is a success, but the ''Enterprise'' falsely reports that the ''Discovery'' was lost, with all hands to conceal the fact that it traveled 930 years into the future in order to prevent Control from reasserting itself. The ''Enterprise'' subsequently undergoes repairs and departs for Edrin II 4 months later. * 2258 (alternate timeline) ** The events of ''

'' take place.

destroys the planet

– killing billions, including Spock's mother – as well as 9

Federation A federation (also known as a federal state) is a political entity characterized by a union of partially self-governing provinces, states, or other regions under a central federal government (federalism). In a federation, the self-governin ...

starships. The USS ''Enterprise'' (NCC-1701) is built in the state of

and is launched on its maiden voyage under Captain Christopher Pike.

becomes the ship's new captain shortly afterward. Henceforth, a different time line is required. *The events of '' Star Trek: Bridge Crew'' take place. **The USS Aegis is searching for a new homeworld for the Vulcans after the destruction of their planet. The ship heads for a region of space called 'The Trench', which is being occupied by Klingons. *The events of ''

Star Trek (2013 video game) ''Star Trek'' is a third-person action-adventure '' Star Trek'' video game. It was developed by Digital Extremes and co-published by Namco Bandai Games and Paramount Pictures in association with CBS Studios International. The game was relea ...

'' take place. **Months Later, Captain Kirk, Spock, and the crew of the USS ''Enterprise'' encounter a powerful alien race known as the Gorn. * 2259 (alternate timeline) ** The events of ''

Star Trek Into Darkness ''Star Trek Into Darkness'' is a 2013 American science fiction action film directed by J. J. Abrams and written by Roberto Orci, Alex Kurtzman, and Damon Lindelof. It is the 12th installment in the ''Star Trek'' franchise and the sequel to the 2 ...

'' take place. * 2259 ** The events of '' Star Trek: Strange New Worlds'' season 1 take place. ** The ''Enterprise'' begins another five-year mission under Christopher Pike. * 2260 (alternate timeline) ** ''The Enterprise'' is launched on a historic five-year mission. * 2263 (alternate timeline) **Space Station Yorktown is established by Commodore Paris. ** The events of ''

Star Trek Beyond ''Star Trek Beyond'' is a 2016 American science fiction action film directed by Justin Lin, written by Simon Pegg and Doug Jung, and based on the television series ''Star Trek'' created by Gene Roddenberry. It is the 13th film in the ''Star Tr ...

'' take place. The USS ''Enterprise'' is destroyed – The USS ''Enterprise''-A is commissioned at Starbase Yorktown as its replacement. ** Ambassador

dies. * 2261–2264 ** The USS ''Enterprise'' (NCC-1701) undergoes a major refit, increasing its crew complement from 203 to 430. * 2263 **Boothby, groundskeeper and counselor at

Starfleet Academy In the Setting (fiction), fictional universe of ''Star Trek'', Starfleet Academy is where recruits to Starfleet's officer corps are trained. It was created in the year 2161, when the United Federation of Planets was founded. The Academy's mot ...

, is born. * 2265–2270 **Following the promotion of Christopher Pike, Captain

is assigned command of the ''Enterprise'' on a historic five-year mission. (In the originally canonical ''

Star Trek Spaceflight Chronology ''Star Trek Spaceflight Chronology'' is a 1980 book written and edited by Stan Goldstein and Fred Goldstein, and illustrated by Rick Sternbach. At the time of its publication it was the official history of the ''Star Trek'' universe. The first seas ...

'' this was 2207 to 2212; '' Star Trek: Strange New Worlds'' contradicts this somewhat by dating Pike's accident to approximately 2268 or 2269 (per dialogue in the episode "Strange New World" stating the accident occurs 10 years in the future), but the TOS episode "The Menagerie" takes place during the first season, approximately a year into Kirk's mission rather than close to its end.) * 2265 ** The events of "

Where No Man Has Gone Before "Where No Man Has Gone Before" is the third episode of the first season of the American science fiction television series, ''Star Trek''. Written by Samuel A. Peeples and directed by James Goldstone, it first aired on September 22, 1966. In t ...

" (TOS) * 2266–2269 ** The events of ''

'' take place. * 2269-2270 ** The events of '' Star Trek: The Animated Series'' take place. (There is no on-screen confirmation of this, but anecdotally TAS is believed to take place towards the end of the mission. *2270 ** The USS ''Enterprise'' (NCC-1701) returns from its five-year mission under the command of Captain

and enters major refit while Kirk is promoted to Admiral at Starfleet Command. Capt. Will Decker is assigned command of the vessel. * 2273 ** The events of '' Star Trek: The Motion Picture''. * 2273-2278 ** The upgraded USS ''Enterprise'' (NCC-1701) embarks on a five-year mission under the command of Admiral

. * 2279 ** Around this time the USS ''Enterprise'' (NCC-1701) is retired from active duty and assigned as a training vessel in orbit of

. At some point during this period, Spock is promoted to captain and assigned command of the vessel. * 2284 ** The USS Excelsior (NX-2000) is built in San Francisco fleet yard and was later docked on the space station and was the first ship with trans warp drive, unfortunately the ship was still unfinished due many specifications and was sent to upstate New York to finish the project and was later renamed USS Excelsior (NCC-2000). * 2285 ** The events of '' Star Trek II: The Wrath of Khan''. *** Kirk takes over command of the ''Enterprise'' from Captain Spock, who subsequently dies. ** The events of '' Star Trek III: The Search for Spock''. The original USS ''Enterprise'' (NCC-1701), having been decommissioned by Starfleet, is destroyed to prevent it from falling into Klingon hands. Spock is revived. * 2286 ** The events of '' Star Trek IV: The Voyage Home''. ** The USS ''Enterprise'' (NCC-1701-A) and is launched on its maiden voyage under the command of the newly demoted Capt. James Kirk. * 2287 ** The events of '' Star Trek V: The Final Frontier''. * 2293 ** The events of '' Star Trek VI: The Undiscovered Country''. The USS ''Enterprise'' (NCC-1701-A) is decommissioned shortly afterwards. ** The opening events of ''

Star Trek Generations ''Star Trek Generations'' is a 1994 American science fiction film and the seventh film in the ''Star Trek'' film series. Malcolm McDowell joins cast members from the 1960s television show ''Star Trek'' and the 1987 sequel series ''The Next G ...

''. The USS ''Enterprise'' (NCC-1701-B) is launched under the command of John Harriman. While responding to a distress call, the ''Enterprise'' is struck by a discharge from the Nexus which breaches the hull and James T. Kirk is presumed killed in the blast. (The exact timing is uncertain and the events of ''Generations'' could take place in a later year.)

24th century

* 2305 **

Jean-Luc Picard Jean-Luc Picard is a fictional character in the ''Star Trek'' franchise, most often seen as the captain of the Federation starship . Played by Patrick Stewart, Picard has appeared in the television series '' Star Trek: The Next Generation'' (''T ...

is born in LaBarre, France on Earth.A biography shown in " Conundrum" establishes the birth-year and birth-place. * 2311 ** The Tomed Incident. * 2319 **

Gary Seven Gary Seven is the major character in the last episode of the second season of the original ''Star Trek'' television series, " Assignment: Earth". He is portrayed by Robert Lansing. "Assignment: Earth" The episode " Assignment: Earth" was origi ...

is born. * 2324 ** Beverly Howard (Crusher) is born in Copernicus City,

Luna Luna commonly refers to: * Earth's Moon, named "Luna" in Latin * Luna (goddess), the ancient Roman personification of the Moon Luna may also refer to: Places Philippines * Luna, Apayao * Luna, Isabela * Luna, La Union * Luna, San Jose Roma ...

. * 2327 **

graduates from Starfleet Academy on Earth (2323-2327). * 2329 **

Chakotay Chakotay is a fictional character who appears in each of the seven seasons of the American science fiction television series '' Star Trek: Voyager''. Portrayed by Robert Beltran, he was First Officer aboard the Starfleet starship USS ''Voyag ...

is born on a Federation colony near Cardassian space in the demilitarized zone * 2332 ** Benjamin L. Sisko is born in

New Orleans New Orleans ( , ,New Orleans
Merriam-Webster. ; french: La Nouvelle-Orléans , es, Nuev ...

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

on Earth. * 2333 ** Jean-Luc Picard becomes captain of the USS ''Stargazer''. * 2335 **

Geordi La Forge Geordi La Forge ( ) is a fictional character who appeared in all seven seasons of the American science fiction television series '' Star Trek: The Next Generation'' and its four feature films. Portrayed by LeVar Burton, he served as helmsman o ...

is born in Mogadishu, Somalia on Earth. ** William T. Riker is born in Valdez,

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

on Earth. * 2336 **

Deanna Troi Deanna Troi is a main character in the science-fiction television series '' Star Trek: The Next Generation'' and related TV series and films, portrayed by actress Marina Sirtis. Troi is half-human, half-Betazoid and has the psionic ability to s ...

is born on Betazed. **

Kathryn Janeway Kathryn Janeway is a fictional character in the ''Star Trek'' franchise. She was the Captain of the Starfleet starship USS ''Voyager'' (on '' Star Trek: Voyager'') while it was lost in the Delta Quadrant on the other side of the galaxy. After re ...

is born in Bloomington,

Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...

on Earth. * 2337 **

Tasha Yar Natasha (russian: Наташа) is a name of Slavic origin. The Slavic name is the diminutive form of Natalia. Notable people * Natasha, the subject of '' Natasha's Story'', a 1994 nonfiction book * Natasha Aguilar (1970–2016), Costa Rican sw ...

is born in a failed Federation colony on Turkana IV. * 2340 **

Worf Worf, son of Mogh is a fictional character in the ''Star Trek'' franchise. He appears in the television series '' Star Trek: The Next Generation'' (''TNG'') and seasons four through seven of '' Star Trek: Deep Space Nine'' (''DS9'') as well as t ...

, son of Mogh, is born on the Klingon homeworld, Qo'noS. * 2341 **

Julian Bashir Julian Subatoi Bashir, MD is a fictional character from the television series '' Star Trek: Deep Space Nine'', portrayed by Alexander Siddig. Bashir is the Chief Medical Officer (CMO) of space station Deep Space Nine and the USS ''Defiant''. ...

is born. * 2343 ** The ''Galaxy'' class development project is officially given the greenlight by Starfleet Command. * 2344 ** The ''Enterprise''-C, under the command of Captain Rachel Garrett, is destroyed defending a

Klingon The Klingons ( ; Klingon: ''tlhIngan'' ) are a fictional species in the science fiction franchise ''Star Trek''. Developed by screenwriter Gene L. Coon in 1967 for the original ''Star Trek'' (''TOS'') series, Klingons were swarthy humanoids c ...

settlement on Narendra III under attack from

Romulan The Romulans () are an extraterrestrial race in the American science fiction franchise ''Star Trek''. They first appeared in the series ''Star Trek'' (1966–1969). They have appeared in most subsequent ''Star Trek'' releases, including '' The A ...

s. ** Due to the ''Enterprise-C''s sacrifice, a new era of more open communication begins between the Federation and the Klingon Empire, leading to a formalized alliance. *2345 **Sela (half-romulan/half-human), daughter of Natasha Yar (alternate reality from "Yesterday's Enterprise"), is born. * 2346 **

's parents are killed by Romulans in the Khitomer massacre. Worf (age 6) is adopted by human parents. * 2349 **

Annika Hansen Seven of Nine (born Annika Hansen) is a fictional character introduced in the American science fiction television series '' Star Trek: Voyager''. Portrayed by Jeri Ryan, she is a former Borg drone who joins the crew of the Federation starship ' ...

is born in Tendara Colony, to Magnus and Erin Hansen. * 2355 ** Magnus, Erin, and Annika Hansen are assimilated by the Borg while on a research mission in the Delta quadrant. ** The USS ''Stargazer'' is attacked by an unknown vessel (later discovered to be

in origin) in the Maxia Zeta system.

wins the confrontation by devising a tactic which becomes known as the ''Picard Manoeuvre''. However, due to damage suffered during the battle, the crew are forced to abandon ship. The ''Stargazer'' is later recovered in 2364. * 2357 **

is the first

to enter

. ** USS ''Galaxy'' (NX-70637), the prototype ''Galaxy'' class is launched. * 2363 ** USS ''Enterprise'' (NCC-1701-D), the third ''Galaxy''-class starship (following the ''Galaxy'' and ''Yamato'') is launched from the Utopia Planitia shipyards in Mars orbit (under the command of Jean-Luc Picard), and becomes the Federation's new

flagship A flagship is a vessel used by the commanding officer of a group of naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the fi ...

. * 2364–2370 ** The events of '' Star Trek: The Next Generation''. * 2367 ** The Borg assimilate Captain

; the

Battle of Wolf 359 "The Best of Both Worlds" is the 26th episode of the third season and the first episode of the fourth season of the American science fiction television series '' Star Trek: The Next Generation''. It comprises the 74th and 75th episodes of the s ...

is fought 7.7 light years from Earth in Sector 001. The battle results in the loss of 39 Starfleet vessels and over 11,000 lives.

Benjamin Sisko Benjamin Lafayette Sisko is a fictional character in the '' Star Trek'' franchise portrayed by Avery Brooks. He first appeared in the television series '' Star Trek: Deep Space Nine'' (''DS9'') and became prominent on the TV show in the United ...

aboard the USS ''Saratoga'' is a participant in the battle and is one of the few survivors alongside his son

Jake Sisko Jake Sisko is a fictional character in the ''Star Trek'' franchise. He appears in the television series '' Star Trek: Deep Space Nine'' (''DS9'') and is portrayed by actor Cirroc Lofton. He is the son of '' Deep Space Nine'' commanding officer ...

. With the task force lost, the Borg continue to Earth. Picard is rescued and the Borg cube is destroyed via the actions of the crew of the ''Enterprise''-D. * 2369–2375 ** The events of '' Star Trek: Deep Space Nine''. * 2369 ** Terok Nor, a Cardassian space station orbiting Bajor, is taken over by Starfleet following the end of hostilities between Bajor and Cardassia. It is redesignated ''Deep Space Nine'' and placed under the command of Commander (later Captain) Benjamin Sisko. Soon after, the discovery of a stable wormhole between the Alpha and Gamma quadrants leads to DS9 being relocated near the wormhole's location in order to facilitate trade, exploration and defense. *2370 ** The events of ''

'' episode "These Are the Voyages..." take place. (this is due to the story being depicted as a holodeck recreation concurrent with the events of the TNG episode ''The Pegasus''). ** The , a mothballed prototype originally designed to fight the Borg, is commissioned into active service and is assigned to

to help protect DS9. Due to the ''Defiant'' being over-powered and over-gunned for its size, several flaws in the ship's design require attention before it reaches a fully operational status. The ''Defiant'' is officially classed as an escort vessel; however, unofficially it is considered a warship built purely for combat. * 2371 ** The "present-day" events of ''

''. The USS ''Enterprise'' (NCC-1701-D)'s stardrive section is destroyed by a warp core breach; the saucer section containing the crew makes a forced landing on Veridian III. The ship is subsequently declared a total loss. James T. Kirk reappears from the temporal continuum in which he had been since his disappearance in 2293. Kirk is killed on Veridian III. * 2371–2378 ** The events of '' Star Trek: Voyager''. ** "

Caretaker Caretaker may refer to: Arts, entertainment, and media * ''The Caretaker'' (film), a 1963 adaptation of the play ''The Caretaker'' * '' The Caretakers'', a 1963 American film set in a mental hospital * Caretaker, a character in the 1974 film '' ...

": the USS ''Voyager'', under the command of Capt. Kathryn Janeway is stranded deep in the

and faces a 75-year-long voyage back to Federation space. Janeway merges her crew with survivors of a vessel staffed by members of an organization called the Maquis that at this time are de facto enemies of the Federation. * 2372 ** ''Sovereign''-class USS ''Enterprise'' (NCC-1701-E) is launched under the command of Captain

(with most of his command crew from the 1701-D intact). * 2373 ** The events of '' Star Trek: First Contact''. The Battle of Sector 001 occurs with a Starfleet Task Force engaging in a running battle with a Borg cube en route to Earth. The USS Defiant (NX-74205) from DS9 is severely damaged but not destroyed, with the crew evacuating to the Enterprise. The USS ''Enterprise'' (NCC-1701-E) follows a Borg sphere through a temporal rift and events shift at that point to 2063. **Still unaware that the USS ''Voyager'' is stuck in the Delta Quadrant, Starfleet officially declares the ship lost with all hands. * 2373–2375 ** Tensions between the Alpha and Gamma quadrants erupt into open warfare, igniting the

Dominion War The Dominion War is an extended plot concept developed in several story arcs of ''Star Trek: Deep Space Nine'', an American science-fiction television series produced by Paramount Pictures. In the fictional ''Star Trek'' universe, the Dominion War ...

fully, with DS9 at its epicenter. * 2374 ** Using an abandoned sensor array network, the USS ''Voyager'' detects a Federation vessel, the USS ''Prometheus'', on the edge of the Alpha Quadrant and transmits The Doctor to the ship. After freeing the ship from the Romulans with help from the ''Prometheus'' EMH, ''Voyager'' officially re-establishes contact with Starfleet. * 2375 ** The USS Defiant (NX-74205) is destroyed. Several weeks later, DS9 receives a replacement Defiant Class vessel, the ''USS Sáo Paulo''. Captain Sisko is granted special permission by Starfleet to rename the vessel ''Defiant''. **After devastating losses on both sides, the Federation, alongside the Romulan and Klingon Empire, make a final push against the Dominion, resulting in the Battle of Cardassia. The Dominion subsequently surrenders to the Federation. ** The events of '' Star Trek: Insurrection''. Dialogue in this film and in the DS9 finale "

What You Leave Behind "What You Leave Behind" is the series finale of the television show '' Star Trek: Deep Space Nine'', the 175th and 176th episodes, the 25th and 26th episodes of the seventh season. The episode was written by showrunner Ira Steven Behr and Ha ...

" place the chronology of this film as during that episode, after the final battle of the war but before the treaty signing ceremony. Most notable in the film is Worf's ability to leave the station to join the ''Enterprise,'' as well as a line about Federation diplomats being involved in Dominion negotiations, and the Federation's willingness to work with the Son'a, who are established as a Dominion ally during the war. * 2378 ** With the help of Admiral Janeway from an alternate timeline in which the ship's return is delayed many years with tragic results, the USS ''Voyager'' returns to the

. ("

Endgame Endgame, Endgames, End Game, End Games, or similar variations may refer to: Film * ''The End of the Game'' (1919 film) * ''The End of the Game'' (1975 film), short documentary U.S. film * ''Endgame'' (1983 film), 1983 Italian post-apocalyptic f ...

"). Tom Paris' and B'Elanna Torres's daughter is born. At some point after returning home (and prior to the events of '' Star Trek: Nemesis'', Janeway is promoted to admiral in the main timeline. * 2379 ** The events of '' Star Trek: Nemesis'', resulting in the death of Lieutenant Commander Data. ** Discovery of previously unknown Android named "B-4", a prototype android similar in design to Lt. Commander Data but with a notably less advanced Positronic Network. * 2380-2381 ** The events of '' Star Trek: Lower Decks''. * 2383 ** The events of '' Star Trek: Prodigy''. *2385, First Contact Day ** The events of '' Star Trek: Short Treks'' episode "Children of Mars" take place. The Utopia Planitia Fleetyards on Mars are sabotaged and subsequently destroyed by rogue synthetics in a surprise attack. The battle results in the loss of 92,143 lives, the planet itself being considered destroyed, its stratosphere ignited, and the destruction of the rescue armada to evacuate Romulus. In the aftermath of the attack, the Federation, unable to determine how or why the synths went rogue, bans the creation of synthetic lifeforms. *2386 **Lieutenant Icheb is captured and stripped for his Borg parts by Bjayzl, and subsequently euthanized by Seven of Nine. *2387 **A star in the Romulan Empire goes Supernova. Ambassador

attempts to counter the resulting shockwave using Red Matter, but is unable to save the planet Romulus from destruction. Spock and the Romulan mining ship ''Narada'', commanded by Nero, are dragged into a black hole created by the Red Matter detonation and arrive in the past. Nero's arrival in 2233 and subsequent attack on the USS ''Kelvin'' creates the Kelvin Timeline. * 2394 ** Voyager returns to the

in the beginning of '' Star Trek: Voyager'' series finale ("

"). This sets in motion events in which

becomes dissatisfied and begins laying plans to eventually change the timeline and send Voyager home sooner. * 2395 ** The "Future" in the '' Star Trek: The Next Generation'' series finale (" All Good Things..."). * 2399 ** The events of ''Star Trek: Picard'' season 1.

25th century

* 2401 **The events of '' Star Trek: Picard'' season 2 begin. * 2404 ** The original timeline split in the '' Star Trek: Voyager'' series finale (

), where Admiral Janeway goes back 26 years to the

and secures ''Voyager''s earlier return to the

. This begins a new timeline (as yet unnamed).

26th century

* c. 2540–2550 ** The Starship ''Enterprise''-J (presumably NCC 1701-J) is commissioned and takes part in the Battle of Procyon V against the Spherebuilders as shown in ''

'' episode "Azati Prime".

27th century

Temporal Cold War ''Star Trek: Enterprise'', titled simply ''Enterprise'' for its first two seasons, is an American science fiction television series created by Rick Berman and Brannon Braga. It originally aired from September 26, 2001, to May 13, 2005 on Uni ...

(with agents from the 31st century); first established in the pilot episode of ''Star Trek: Enterprise'' and recurring until the series' fourth season premiere, it is a struggle between those who would alter history to suit their own ends and those who would preserve the integrity of the original timeline. * With the distance between them having expanded over the centuries and making travel increasingly difficult, the last crossing between the Prime and Mirror Universes occurs at some point during this century.

29th century

* The Aeon-type timeship is in active service during this century ("

"), as is the ''Wells''-class timeship ''Relativity'' (" Relativity").

30th century

* Around the year 2958, supplies of Dilithium in the Milky Way started to dry up, marking the beginning of an energy crisis. The

began development and trials of alternatives to warp drive, though none proved to be reliable. * The Federation spends much of this century engaged in a temporal war with the objective of upholding the Temporal Accords to ensure the timeline remains unaltered.

31st century

* 3069 **A cataclysmic galaxy-wide event referred to as "The Burn" occurs. Nearly all dilithium in the galaxy suddenly went inert, causing a massive loss of life and the destruction of every ship and facility with an active warp core. In the aftermath, the remaining dilithium became an ever more scarce resource. With few ships and warp travel severely impeded, no explanation for what happened and the uncertainty if it will happen again, the

, Starfleet Command, The United Earth, effectively collapses. *3074 **The main plot of the '' Star Trek: Voyager'' episode "

Living Witness "Living Witness" is the 91st episode of the science fiction television series '' Star Trek: Voyager'', the 23rd episode of the fourth season. This episode takes place in 3100s, when an AI program called The Doctor (played by Robert Picardo) is ...

" takes place, and the final scene takes place "many years" after that. * 3089 **The Federation, Starfleet Command and United Earth leave planet Earth for a new headquarters location. Around the same time, the United Earth government withdraws Earth from the Federation, becoming fully self-sufficient and isolating multiple planets from the rest of the galaxy. * Episodes with time traveler Daniels from ''

'' ** "

Cold Front A cold front is the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure. It often forms behind an extratropical cyclone (to the west in the Norther ...

", "

Shockwave In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a me ...

", "

Azati Prime "Azati Prime" is the eighteenth episode of the third season of the American science fiction television series '' Star Trek: Enterprise'', the 70th overall. The episode was written by Manny Coto from a story developed by Coto, Rick Berman and B ...

32nd century

* 3186 ** This is the year Gabrielle Burnham arrived in after using the Red Angel suit to escape a Klingon attack on her home. (Discovery S2 E10) *3188-3190 ** The events of '' Star Trek: Discovery'' seasons 3 to 4.

34th Century

*3374 ** According to Obrist, if the Krenim weapon ship continued to alter time to this point, full restoration of the Krenim Imperium would not have been achieved.

Far future

* The events of '' Star Trek: Short Treks'' episode "Calypso" take place.

History of the chronology (historiography)

Several efforts have been made to develop a chronology for the events depicted by the ''

'' television series and its spin-offs. This matter has been complicated by the continued additions to the ''Star Trek'' canon, the existence of time travel and multiple concurrent timelines, and the scarcity of

Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years dif ...

dates given in the show (

s instead being used).

Original series

Not many references set the original series in an exact time frame, and those that exist are largely contradictory. In the episode "

", a 1960s military officer says that he's going to lock

Captain Kirk James Tiberius Kirk is a fictional character in the '' Star Trek'' media franchise. Originally played by Canadian actor William Shatner, Kirk first appeared in '' Star Trek'' serving aboard the starship USS ''Enterprise'' as captain. Kirk lea ...

up "for two hundred years", to which Kirk replies, with wry amusement: "That ought to be just about right." Likewise, in the episode "

", it is said that the 1996 warlord Khan Noonian Singh is from "two centuries" ago. Both these references place the show in the 22nd century. However, in the episode "

Miri ) , subdivision_type = Country , subdivision_name = , subdivision_type1 = State , subdivision_name1 = , subdivision_type2 = Division , subdivision_name2 ...

", it is said that 1960 was around 300 years ago, pushing the show into the 23rd century. Finally, the episode "

The Squire of Gothos "The Squire of Gothos" is the 17th episode of the first season of the American science-fiction television series, ''Star Trek''. Written by Paul Schneider, and directed by Don McDougall, it first aired on January 12, 1967. In the episode, the ...

" implied that the

light cone In special and general relativity, a light cone (or "null cone") is the path that a flash of light, emanating from a single event (localized to a single point in space and a single moment in time) and traveling in all directions, would take thro ...

of 19th century Earth has expanded to 900 light years of radius, which seems to set the show in the 28th century, since light would take nine centuries to traverse that distance. According to notes in ''The Making of Star Trek'', the show is set in the 23rd century, and the ''Enterprise'' was supposed to be around 40 years old. Roddenberry says in this book that the stardate system was invented to avoid pinning down the show precisely in time frame. Roddenberry's original pitch for the series dated it "'somewhere in the future. It could be 1995, or maybe even 2995".

Early chronologies

The ''

'' and

FASA Fasa ( fa, فسا, Fasā, also Romanized as Fassa) is a city and capital of Fasa County, Fars Province, Iran. At the 2016 census, its population was 110,825, in 33,379 families. Fasa is the fourth most populous city of the province. The city date ...

, a publisher of the first licensed ''Star Trek'' role-playing game, chose to take the "Space Seed figure", adding a few years to make sure the events of the Original Series were in the 23rd century. This dating system is followed by other spin-off works in the 1980s, including '' Mr. Scott's Guide to the Enterprise''. This timeline system gives the following dates *The sub-warp ship the UNSS ''Icarus'' makes first contact with Alpha Centauri in 2048, and there meets Zefrem Cochran ic who has invented warp drive. *The first Earth warp ship, the ''Bonaventure'' makes its first voyage, to

Tau Ceti Tau Ceti, Latinized from τ Ceti, is a single star in the constellation Cetus that is spectrally similar to the Sun, although it has only about 78% of the Sun's mass. At a distance of just under from the Solar System, it is a relativ ...

, in 2059. *The first contact with

s is in 2065, when a damaged Vulcan spaceship is rescued by UNSS Amity. *The

is formed in 2087. *The Earth–Romulan War occurs in the 2100s. *First contact with the

Klingon Empire The Klingons ( ; Klingon: ''tlhIngan'' ) are a fictional species in the science fiction franchise ''Star Trek''. Developed by screenwriter Gene L. Coon in 1967 for the original ''Star Trek'' (''TOS'') series, Klingons were swarthy humanoids ch ...

in 2151, who demand the return of a group of refugees from the USS Sentry. *The first ''Constitution''-class starship is launched in 2188. *The USS ''Enterprise'''s five-year mission under

lasts from 2207 to 2212. *The events of '' Star Trek: The Motion Picture'' occur in 2217. *The events of '' Star Trek II: The Wrath of Khan'' occur around 2222 (dialogue in the film says it is set "fifteen years" after the Season One episode "Space Seed"). *The events of '' Star Trek IV: The Voyage Home'' occur on September 21, 2222. The ''

Star Fleet Battles ''Star Fleet Battles'' (SFB) is a Military tactics, tactical board wargame set in an offshoot of the ''Star Trek'' setting called the Star Fleet Universe. Originally created in 1979 by Stephen V. Cole, it has had four major editions. The current ...

'' game was published in 1979, with a license only covering the original series. It has since diverged into an entirely separate fictional universe, new additions to which continue to be published. It does not tie into the Gregorian calendar, instead using a "Year 1" of the invention of Warp on Earth. Its version of the original series backstory is: *Y1 – Warp drive is developed on Earth. *Y4 – Federation is formed by Earth, Vulcan, Andoria, Alpha Centauri. *Y40-Y46 – Earth–Romulan War. *Y71 – Starfleet is formed. *Y126 – The Constitution-class is launched (an upgrade from the ''Republic''-class). *Y154–159 – The events of the Original Series. See Star Fleet Universe timeline.

TNG era and Okuda

Press materials for ''The Next Generation'' suggested it was set in the 24th century, seventy-eight years after the existing ''Star Trek'', although the exact time frame had not yet been set in stone. The pilot had dialogue stating Data was part of the Starfleet "class of '78". The pilot episode, "

Encounter at Farpoint "Encounter at Farpoint" is the pilot episode and series premiere of the American science fiction on television, science fiction television series ''Star Trek: The Next Generation'', which premiered in first-run syndication, syndication on Septem ...

", also has a cameo appearance by Leonard "Bones" McCoy, who is said to be 137. In the last episode of the first season, the year is firmly established by

Data In the pursuit of knowledge, data (; ) is a collection of discrete values that convey information, describing quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted ...

as 2364. This marked the first time an explicit future calendar date had been attached to a ''Star Trek'' storyline, and allowed fans and writers to extrapolate further dates. For example, the established date implies McCoy was born around 2227, ruling out the ''Spaceflight Chronology''-derived dating of the original series to the early 23rd century (though the dating had already been effectively overruled by ''Star Trek IV'', which primarily takes place in 1986, where Kirk tells Gillian Taylor that he is from the late 23rd Century, though he does not give an exact date). A ''

Star Trek Chronology This article discusses the fictional timeline of the ''Star Trek'' franchise. The franchise is primarily set in the future, ranging from the mid-22nd century ('' Star Trek: Enterprise'') to the late 24th century ('' Star Trek: Picard''), with the ...

'' was published in 1993, written by production staff members

Denise Okuda Denise Lynn Okuda is a computer, scenic and video supervisor, and a writer known for her work on several ''Star Trek'' film and television productions, as well as other science fiction television. She also co-authored the '' Star Trek Encyclope ...

and

Michael Okuda Michael Okuda is an American graphic designer best known for his work on ''Star Trek'' including designing futuristic computer user interfaces known as "okudagrams". Career Work in ''Star Trek'' In the mid-1980s, he designed the look of ani ...

. A second edition was issued in 1996. Okuda originally drew up a timeline for internal use by writers, based on his own research and assumptions provided by Richard Arnold. The dates in the ''Chronology'' are consistent with the earlier '' Star Trek: The Next Generation Technical Manual''. It gives the following dates: *Zephram Cochrane invents warp drive around 2061 (so that the SS ''Valiant'' can be constructed and go missing two hundred years before "

", dated to 2265; the first edition gives 2061; the second edition moves this to 2063 per '' Star Trek: First Contact''). * The Romulan War takes place in the 2150s (about a hundred years before "

Balance of Terror The phrase "balance of terror" is usually, but not invariably,Rich Miller, Simon Kennedy'G-20 Plans to End 'Financial Balance of Terror' After Summit,'Bloomberg 27 February 2009. used in reference to the nuclear arms race between the United State ...

"). * The Federation is formed in 2161, after the Romulan War, on the basis that "Balance of Terror" says that it was an Earth-Romulan war, not a Federation-Romulan War. * The first Constitution-class starship is launched in 2244, followed by the ''Enterprise'' in 2245. * Kirk's five-year mission lasts from 2264 to 2269, based on the assumption that the original series is set exactly 300 years after its original broadcast. ** Aired live-action ''Star Trek'' episodes are dated from 2266 to 2269. The chronology does not include the events of '' Star Trek: The Animated Series''. This is in keeping also with Gene Roddenberry's concept (discussed in ''The Making of Star Trek'' by Roddenberry and Stephen Whitfield) that ''Star Trek's'' first season takes place after the mission has been under way for some time. ** An episode of '' Voyager'', " Q2", aired after the ''Chronology'' was published, established that Kirk's five-year mission actually ended in 2270. * The events of '' Star Trek: The Motion Picture'' take place in 2271 (Kirk has been Chief of Starfleet Operations for two and a half years, according to dialog from Kirk and Decker). ** The " Q2" dating for Kirk's five-year mission, moves the first film to c. 2273. * Numerous sources, including the ''Chronology'', postulate a second five-year mission under now-Admiral Kirk's command, begun soon after the events of the first movie; in part this is to take into account the unproduced revival series

Star Trek: Phase II ''Star Trek: Phase II'' was the initial working title for what officially became titled ''Star Trek II,'' an unproduced American science fiction television series created by Gene Roddenberry as a sequel to (and continuation of) the original ''S ...

. * The events of '' Star Trek II: The Wrath of Khan'' and '' Star Trek III: The Search for Spock'' take place in 2285. **''The Wrath of Khan'' is a sequel to the episode "Space Seed", which Okuda dates to 2267. In Okuda's timeline there is a gap of eighteen years rather than the fifteen years established in dialog. The film was released in 1982, fifteen years after the episode's broadcast in 1967. The film begins on Kirk's birthday, which is semi-canonically established as March 22, the same as

William Shatner William Shatner (born March 22, 1931) is a Canadian actor. In a career spanning seven decades, he is best known for his portrayal of James T. Kirk in the ''Star Trek'' franchise, from his 1965 debut as the captain of the starship USS Enterpri ...

's. * The events of '' Star Trek IV: The Voyage Home'' take place in 2286. **This places ''Star Trek III'' in late 2285, as Kirk states in his log that the ''Enterprise'' crew has been on Vulcan for "three months" since bringing Spock home. * The events of '' Star Trek V: The Final Frontier'' apparently take place soon after the events of the fourth film, as evidenced by Scotty's complaints about repairing the ship after its shakedown cruise, which was depicted at the end of ''Star Trek IV''. ''Star Trek V'' would then take place in early 2287. * The events of '' Star Trek VI: The Undiscovered Country'' take place in 2293, based on McCoy's statement that he had served on the ''Enterprise'' for 27 years, and his absence in "

". * The Kirk-era part of ''

'' is set 78 years before 2371 (established by way of an on-screen caption), thus is set in 2293 and soon after ''Star Trek VI''. The gap between the 1986 film ''Star Trek IV: the Voyage Home'' (2286) and the 1987 first season of ''The Next Generation'' (2364) is 78 years by this timeline, matching early press materials. A gap of 10 years passed between the broadcast of the last episode of ''Star Trek: The Original Series'' and the release of ''The Motion Picture''. The film skirted around the fact the actors had aged, supposing that only two and a half years had passed since the events of the TV show. For ''Star Trek II'', it was decided to acknowledge the reality of the aging actors, both by setting the film some 15 years after "Space Seed", and by having Kirk worry about getting old. Within ''The Next Generation'' era, episodes and films are easier to date. Stardates correspond exactly with seasons, with the first two digits of the stardate representing the season number. Okuda assumes the start of a season is January 1 and the end of the season is December 31. ''The Next Generation'', ''Deep Space Nine'', and ''Voyager'' television series, as well as the movies, have roughly followed "real time", and are set around 377 years after their release. Since the ''Chronology'' was published, it has been generally adhered-to by the producers of the show. The film '' Star Trek: First Contact'' and prequel series ''

'' both revisit the early era. In ''First Contact'', Zephram Cochrane is confirmed as having invented warp drive on Earth, but the date is moved forward slightly to 2063, and it is revealed that Earth's official first contact with an alien species, the Vulcans, took place immediately afterwards as a result of this. The dating of the final season of '' Star Trek: Voyager'' has presented controversy. The standard assumption about stardates, as well as the regular correspondence between seasons and in-universe years, would place the entire season in the year 2377; the season begins with stardate 54014.4 and ends with 54973.4. However, the episode "

Homestead Homestead may refer to: *Homestead (buildings), a farmhouse and its adjacent outbuildings; by extension, it can mean any small cluster of houses *Homestead (unit), a unit of measurement equal to 160 acres *Homestead principle, a legal concept th ...

" features a celebration of the 315th anniversary of Zefram Cochrane's first contact with the

, which would set the episode on April 5, 2378. The fansite

Memory Alpha Memory Alpha is a wiki encyclopedia for topics related to the ''Star Trek'' fictional universe. Conceived by Harry Doddema and Dan Carlson in September 2003 and officially launched on December 5 of that year, it uses the wiki model and is hosted ...

thus places the final eight episodes of the season ("

Human Error Human error refers to something having been done that was " not intended by the actor; not desired by a set of rules or an external observer; or that led the task or system outside its acceptable limits".Senders, J.W. and Moray, N.P. (1991) Human ...

" through "

") in 2378, with other sources following suit. ''

'' is set in the 2150s, and ties into the Cochrane backstory. The show uses the

instead of Stardates, making tracking the dating easier. Its pilot, " Broken Bow", depicts first contact with the Klingons occurring much earlier than the Okuda chronology anticipated (it suggested a date of 2218, based on a line in "

Day of the Dove "Day of the Dove" is the seventh episode of the third season of the American science fiction television series ''Star Trek''. Written by Jerome Bixby and directed by Marvin Chomsky, it was first broadcast November 1, 1968. In the episode, an al ...

", noting that dialog in "First Contact" makes this problematic – though the actual line in the episode referred to ''hostilities'' between the two, and in ''

'', Human-Klingon relations, while by no means friendly, clearly do not rise to the de facto state of war shown in ''TOS''). It shows the opening of the Romulan war and the start of a coalition between Earth, Vulcan, Andor, and Tellar in the 2150s. The date of the founding year of the Federation, 2161, was revealed in the fifth-season ''TNG'' episode "The Outcast," based on an early draft of the Okuda timeline. The final episode of ''

'', " These Are the Voyages...", is consistent with the establishment of 2161 as the founding year for the Federation. No version of the ''Chronology'' or the ''Encyclopedia'' has been published since 1999. A 2006 book by Jeff Ayers contains a timeline which attempts to date all of the many ''Star Trek'' novels. This timeline has ''The Motion Picture'' in 2273, to account for the two-and-a-half-year gap between the end-date of 2270 established in "Q2" and the events of the movie. The official website, StarTrek.com, still gives the date of that movie as 2271.

Eugenics Wars and World War III

When the original series of ''Star Trek'' was produced, the 1990s were several decades away, and so various elements of the backstory to ''Star Trek'' are set in that era, particularly the Eugenics Wars. The references to the Eugenics Wars and to a nuclear war in the 21st century are somewhat contradictory. The episode "

" establishes the Eugenics Wars, and has them lasting from 1992 to 1996. The Eugenics Wars are described as a global conflict in which the progeny of a

human genetic engineering Human genetic enhancement or human genetic engineering refers to human enhancement by means of a genetic modification. This could be done in order to cure diseases (gene therapy), prevent the possibility of getting a particular disease (similarly ...

project, most notably

Khan Noonien Singh Khan Noonien Singh is a fictional character in the ''Star Trek'' science fiction franchise, who first appeared as the main antagonist in the ''Star Trek: The Original Series'' episode "Space Seed" (1967), and was portrayed by Ricardo Montalbán ...

, established themselves as supermen and attempted

world domination World domination (also called global domination or world conquest or cosmocracy) is a hypothetical power structure, either achieved or aspired to, in which a single political authority holds the power over all or virtually all the inhabitants ...

. Spock calls them "the last of your so-called World Wars", and McCoy identifies this with the Eugenics Wars. In the episode "

", Spock gives a death toll for World War III of 37 million. The episode "

The Savage Curtain "The Savage Curtain" is the twenty-second episode of the third season of the American science fiction television series ''Star Trek''. Written by Gene Roddenberry and Arthur Heinemann (based on an original story by Roddenberry) and directed by He ...

" features a Colonel Phillip Green, who led a genocidal war in the 21st century. The ''TNG'' episode "

" further establishes a "post-atomic horror" on Earth in 2079. However, the movie ''Star Trek: First Contact'' put the contact between Vulcans and humans at April 5, 2063. The ''

Star Trek Concordance The ''Star Trek Concordance'' is a reference book by Bjo Trimble about the television series ''Star Trek''. The first edition was self-published in 1969. A mass-market edition was published in 1976. The 1976 edition contains summaries from ev ...

'' identifies the "Bread and Circuses" figure as the death toll for a nuclear

, in the mid-21st century. '' Star Trek: First Contact'' firmly establishes World War III ended, after a nuclear exchange, in 2053, but with a body count of 600 million. The figure of Colonel Green is elaborated on in ''

''. '' First Contact'' also deliberately describes the warring parties in World War III as "factions", not nations ''

per se Per se may refer to: * ''per se'', a Latin phrase meaning "by itself" or "in itself". * Illegal ''per se'', the legal usage in criminal and antitrust law * Negligence ''per se'', legal use in tort law *Per Se (restaurant) Per Se is a New Ameri ...

''. The ''Voyager'' episode "

" saw the ''Voyager'' crew time-travel to

in 1996, which, as the ''Encyclopedia'' notes, seems entirely unaffected by the Eugenics Wars, which ended that year. The episode acknowledges the issue only by featuring a model of Khan's DY-100-class ship on a 1996 desk. Khan's spaceship is another anomaly for the timeline, which has a variety of long-lost spaceships being launched between 1980 and 2100, with inconsistent levels of technology (caused by the increasing real lifetime and also decreased optimism about the pace of space exploration). A reference in the ''Deep Space Nine'' episode "

Doctor Bashir, I Presume? "Doctor Bashir, I Presume?" is the 114th episode of the syndicated American science fiction television series '' Star Trek: Deep Space Nine'', the 16th episode of the fifth season. This episode guest stars actor Robert Picardo, who played the ...

" suggests that the Eugenic Wars instead took place in the 22nd century. According to writer Ronald D. Moore, this was not an attempt at a

, but a mistake – when writing the episode, he recalled the already questionable "two centuries ago" line from "Space Seed" and forgot that ''DS9'' takes place over 100 years later. Season 4 of ''

'' involves a trilogy of episodes (" Borderland" "

Cold Station 12 "Cold Station 12" is the fifth episode of the fourth season of the American science fiction television series ''Star Trek: Enterprise'', the eighty-first episode overall. It was directed by Mike Vejar from a script by Alan Brennert, and aired on ...

", and "

The Augments "The Augments" is the sixth episode of the fourth season of the American science fiction television series ''Star Trek: Enterprise'', the eighty-second episode overall. It is the last of a three-story episode arc, preceded by " Borderland", and ...

") related to scientist Doctor

Arik Soong This is a list of recurring characters from the live-action science fiction television series ''Star Trek: Enterprise'', which originally aired on UPN between 2001 and 2005. The television show takes place in the 22nd century of the ''Star Trek' ...

, ancestor of Doctor Noonien Soong, and his genetic augmentations of Humans. Numerous historical details of the devastating Eugenics Wars are discussed: the death of 35–37 million people; how Earth's governments could not decide on the fate of the 1,800 genetically enhanced embryos; and how Soong had infiltrated the complex and stolen and raised 19 embryos himself. Soong maintained that he himself and humanity in general had learned the lessons of the Eugenics Wars and should not continue to hide behind those events when there was progress to be made now that the technology had matured and was much more practicable. (The actions of his "children" convince him otherwise, and at the end of "The Augments" Soong declares his interest in cybernetics, beginning the work which would one day bring about

.) Greg Cox's two-book series '' The Eugenics Wars: The Rise and Fall of Khan Noonien Singh'' develops the idea of the Eugenics Wars in the context of real-life history by representing it as a

secret history A secret history (or shadow history) is a revisionist interpretation of either fictional or real history which is claimed to have been deliberately suppressed, forgotten, or ignored by established scholars. "Secret history" is also used to desc ...

, and that the truth behind the various civil wars and conflicts in the 1990s was not generally known; Los Angeles, whose appearance in "Future's End" helped bring the war's existence into question, is portrayed as an EW "battlefront", the

Rodney King riots The 1992 Los Angeles riots, sometimes called the 1992 Los Angeles uprising and the Los Angeles Race Riots, were a series of riots and civil disturbances that occurred in Los Angeles County, California, in April and May 1992. Unrest began in So ...

being one such calamity. The series '' Star Trek: Strange New Worlds,'' which first aired in spring 2022, complicates the time line further by retconning certain dating aspects by explicitly dating the Eugenics Wars to the first half of the 21st century, following a second American Civil War and leading up to the full-scale World War III nuclear conflict described in earlier films and episodes. This differs from "Space Seed" asserting that not only did the Eugenics Wars take place in the mid-1990s but dialogue indicates that they were either concurrent with or simply were World War III.

Cochrane

In the episode "

", it is stated that Zefram Cochrane of Alpha Centauri, the discoverer of the space warp, disappeared 150 years ago, at the age of 87. Based on the 2207 to 2212 originally given this would have put Cochrane's disappearance between 2057 to 2062 and his birth between 1970 to 1975. However, Okuda's date of 2267 for that episode, puts Cochrane's disappearance in 2117 and birth in 2030. 1980s spin-off material such as the ''

'' posit that Cochrane was from Alpha Centauri originally, and that a sub-warp ship the UNSS ''Icarus'' arrived at Alpha Centauri in 2048 to find he had discovered the theory behind warp drive. The ''Icarus'' then relayed its findings back to Earth. The first prototype warp ship was launched in 2055. The ''Star Trek Chronology'' does not hold with this theory, and asserts that Cochrane was an Earth native, who moved to Alpha Centauri later in life. (Even in "Metamorphosis", before Cochrane identifies himself to the landing party, Dr. McCoy had taken a tricorder scan and determined him to be human.) The first edition ''Chronology'' notes that Cochrane's invention of warp drive must have been at least 200 years before "

", and suggests a date of 2061, noting that Cochrane would be 31 that year. The film '' Star Trek: First Contact'' prominently features Cochrane's first successful warp flight. The film is set in 2063, two years after the ''Chronology'' suggestions, and therefore by the timeline Cochrane is 33. The actor who played Cochrane in that movie,

James Cromwell James Oliver Cromwell (born January 27, 1940) is an American actor and activist. Some of his best-known films include ''Babe'' (1995), '' Star Trek: First Contact'' (1996), ''L.A. Confidential'' (1997), '' The Green Mile'' (1999), ''The Queen'' ...

, was 56 at the time of the film's release. The ''Encyclopedia'' notes the age issue, and claims that the Cromwell Cochrane had suffered from radiation poisoning, causing his aged appearance. ''

'' pins down Cochrane's disappearance to 2119, making Cochrane instead 31 at the time of ''First Contact''.

Notes

# Except for the series finale – "These Are the Voyages..." # The events of "These are the voyages..." are displayed as a holodeck simulation. Episode itself takes place in 2370 (stardate 47457.1) # The film begins in the main timeline only to set up the alternate timeline. # Stardate 47457.1, parallel with ''The Next Generation'' episode "Pegasus"

References

External links

Memory Alpha, the ''Star Trek'' wiki: Timeline
{{DEFAULTSORT:Timeline Of Star Trek Star Trek