April is the fourth month of the year in the Gregorian and

Julian calendar The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts ...

s. Its length is 30 days. April is commonly associated with the season of spring in the

Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the equator. For other planets in the Solar System, north is defined by humans as being in the same celestial sphere, celestial hemisphere relative to the invariable plane of the Solar ...

, and

autumn Autumn, also known as fall (especially in US & Canada), is one of the four temperate seasons on Earth. Outside the tropics, autumn marks the transition from summer to winter, in September (Northern Hemisphere) or March ( Southern Hemisphe ...

in the Southern Hemisphere, where it is the seasonal equivalent to

October October is the tenth month of the year in the Julian and Gregorian calendars. Its length is 31 days. The eighth month in the old calendar of Romulus , October retained its name (from Latin and Greek ''ôctō'' meaning "eight") after Januar ...

in the Northern Hemisphere and vice versa.

History

The Romans gave this month the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

name ''

Aprilis ''Aprilis'' or ''mensis Aprilis'' (April) was the fourth month of the ancient Roman calendar in the classical period, following '' Martius'' (March) and preceding ''Maius'' (May). On the oldest Roman calendar that had begun with March, ''Aprilis' ...

''"April" in ''

Chambers's Encyclopædia ''Chambers's Encyclopaedia'' was founded in 1859Chambers, W. & R"Concluding Notice"in ''Chambers's Encyclopaedia''. London: W. & R. Chambers, 1868, Vol. 10, pp. v–viii. by William and Robert Chambers of Edinburgh and became one of the most ...

''. London:

George Newnes Sir George Newnes, 1st Baronet (13 March 1851 – 9 June 1910) was a British publisher and editor and a founding figure in popular journalism. Newnes also served as a Liberal Party Member of Parliament for two decades. His company, George Newne ...

, 1961, Vol. 1, p. 497. but the derivation of this name is uncertain. The traditional etymology is from the verb ''aperire'', "to open", in allusion to its being the season when trees and flowers begin to "open", which is supported by comparison with the modern Greek use of άνοιξη (''ánixi'') (opening) for spring. Since some of the Roman months were named in honor of divinities, and as April was sacred to the goddess

Venus Venus is the second planet from the Sun. It is often called Earth's "twin" or "sister" planet for having almost the same size and mass, and the closest orbit to Earth's. While both are rocky planets, Venus has an atmosphere much thicker ...

, her

Veneralia The Veneralia was an ancient Roman festival celebrated April 1 (the Kalends of ''Aprilis'') in honor of Venus Verticordia ("Venus the changer of hearts") and Fortuna Virilis ("Manly" or "Virile Fortune"). The cult of Venus Verticordia was esta ...

being held on the first day, it has been suggested that Aprilis was originally her month Aphrilis, from her equivalent Greek goddess name

Aphrodite Aphrodite (, ) is an Greek mythology, ancient Greek goddess associated with love, lust, beauty, pleasure, passion, procreation, and as her syncretism, syncretised Roman counterpart , desire, Sexual intercourse, sex, fertility, prosperity, and ...

(''Aphros''), or the

Etruscan __NOTOC__ Etruscan may refer to: Ancient civilization *Etruscan civilization (1st millennium BC) and related things: **Etruscan language ** Etruscan architecture **Etruscan art **Etruscan cities **Etruscan coins **Etruscan history **Etruscan myt ...

name ''

Apru The Association of Pacific Rim Universities (APRU) is a consortium of 62 universities in 18 economies of the Pacific Rim. Formed in 1997,

''.

Jacob Grimm Jacob Ludwig Karl Grimm (4 January 1785 – 20 September 1863), also known as Ludwig Karl, was a German author, linguist, philologist, jurist, and folklorist. He formulated Grimm's law of linguistics, and was the co-author of the ''Deutsch ...

suggests the name of a hypothetical god or hero, ''Aper'' or ''Aprus''. April was the second month of the earliest

Roman calendar The Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it is often used inclusively of the Julian calendar established by Julius Caesar in 46&nbs ...

, before ''

Ianuarius , ("January"), or in full , abbreviated , was the first month of the Roman calendar, ancient Roman calendar, from which the Julian calendar, Julian and Gregorian calendar, Gregorian month of January derived. It was followed by ''Februarius'' (" ...

'' and ''

Februarius ''Februarius'', fully ''Mensis Februarius'' ("month of Februa"), was the shortest month of the Roman calendar from which the Julian calendar, Julian and Gregorian calendar, Gregorian month of February derived. It was eventually placed second in ...

'' were added by King

Numa Pompilius Numa Pompilius (; 753–672 BC; reigned 715–672 BC) was the Roman mythology, legendary second king of Rome, succeeding Romulus after a one-year interregnum. He was of Sabine origin, and many of Rome's most important religious and political ins ...

about 700 BC. It became the fourth month of the calendar year (the year when twelve months are displayed in order) during the time of the

decemvirs The decemviri or decemvirs (Latin for "ten men") refer to official ten-man commissions established by the Roman Republic. The most important were those of the two decemvirates, formally the decemvirate with consular power for writing laws () w ...

about 450 BC, when it was 29 days long. The 30th day was added back during the reform of the calendar undertaken by

Julius Caesar Gaius Julius Caesar (12 or 13 July 100 BC – 15 March 44 BC) was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in Caesar's civil wa ...

in the mid-40s BC, which produced the Julian calendar. The

Anglo-Saxons The Anglo-Saxons, in some contexts simply called Saxons or the English, were a Cultural identity, cultural group who spoke Old English and inhabited much of what is now England and south-eastern Scotland in the Early Middle Ages. They traced t ...

called April ''ēastre-monaþ''. The

Venerable Bede Bede (; ; 672/326 May 735), also known as Saint Bede, Bede of Jarrow, the Venerable Bede, and Bede the Venerable (), was an English monk, author and scholar. He was one of the most known writers during the Early Middle Ages, and his most fa ...

says in ''

The Reckoning of Time ''The Reckoning of Time'' (, CPL 2320) is an English era treatise written in Medieval Latin by the Northumbrian monk Bede in 725. Background In mid-7th-century Anglo-Saxon England, there was a desire to see the Easter season less closel ...

'' that this month ''ēastre'' is the root of the word

Easter Easter, also called Pascha ( Aramaic: פַּסְחָא , ''paskha''; Greek: πάσχα, ''páskha'') or Resurrection Sunday, is a Christian festival and cultural holiday commemorating the resurrection of Jesus from the dead, described in t ...

. He further states that the month was named after a goddess '' Eostre'' whose feast was in that month. It is also attested by

Einhard Einhard (also Eginhard or Einhart; ; 775 – 14 March 840) was a Franks, Frankish scholar and courtier. Einhard was a dedicated servant of Charlemagne and his son Louis the Pious; his main work is a biography of Charlemagne, the ''Vita Karoli M ...

in his work ''

Vita Karoli Magni ''Vita Karoli Magni'' (''Life of Charlemagne'') is a biography of Charlemagne, King of the Franks and Holy Roman Emperor, Emperor of the Romans, written by Einhard.Ogg, p. 109 The ''Life of Charlemagne'' is a 33 chapter account starting with th ...

''.

St George Saint George (;Geʽez: ጊዮርጊስ, , ka, გიორგი, , , died 23 April 303), also George of Lydda, was an early Christian martyr who is venerated as a saint in Christianity. According to holy tradition, he was a soldier in the R ...

's day is the twenty-third of the month; and

St Mark Mark the Evangelist (Koine Greek, Koinē Greek: Μᾶρκος, romanized: ''Mârkos''), also known as John Mark (Koine Greek, Koinē Greek language, Greek: Ἰωάννης Μᾶρκος, Romanization of Greek, romanized: ''Iōánnēs Mârkos;'' ...

's Eve, with its superstition that the ghosts of those who are doomed to die within the year will be seen to pass into the church, falls on the twenty-fourth. In

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

the symbolic ploughing of the earth by the emperor and princes of the blood took place in their third month, which frequently corresponds to April. In Finnish, April is ''huhtikuu'', meaning ''

slash-and-burn Slash-and-burn agriculture is a form of shifting cultivation that involves the cutting and burning of plants in a forest or woodland to create a Field (agriculture), field called a swidden. The method begins by cutting down the trees and woody p ...

moon'', when

gymnosperm The gymnosperms ( ; ) are a group of woody, perennial Seed plant, seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include Pinophyta, conifers, cycads, Ginkgo, and gnetoph ...

s for beat and burn clearing of farmland were felled. In Slovene, the most established traditional name is ''mali traven'', the month when plants start growing. It was first written in 1466 in the Škofja Loka manuscript. The month April originally had 30 days;

made it 29 days long; finally,

's calendar reform made it 30 days long again, which was not changed in the calendar revision of

Augustus Caesar Gaius Julius Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian (), was the founder of the Roman Empire, who reigned as the first Roman emperor from 27 BC until his death in A ...

in 8 BC. In

Ancient Rome In modern historiography, ancient Rome is the Roman people, Roman civilisation from the founding of Rome, founding of the Italian city of Rome in the 8th century BC to the Fall of the Western Roman Empire, collapse of the Western Roman Em ...

, the festival of Cerealia was held for seven days from mid-to-late April, but exact dates are still being determined. Feriae Latinae was also held in April, with the date varying. Other ancient Roman observances include

(April 1),

Megalesia The Megalesia, Megalensia, or Megalenses Ludi was a festival celebrated in ancient Rome from April 4 to April 10, in honour of Cybele, whom the Romans called ''Magna Mater'' ("Great Mother"). The name of the festival derives from Greek ''megalē' ...

(April 10–16),

Fordicidia In ancient Roman religion, the Fordicidia was a festival of fertility, held on the Ides of April (April 15), that pertained to farming and animal husbandry. It involved the sacrifice of a pregnant cow to Tellus, the ancient Roman goddess of the ...

(April 15),

Parilia ''Festa di Pales, o L'estate'' (1783), a reimagining of the Festival of Pales by Joseph-Benoît Suvée The Parilia or Palilia was an ancient Roman festival of rural character performed annually on 21 April, aimed at cleansing both sheep and she ...

(April 21), Vinalia Urbana (April 23),

Robigalia The Robigalia was a festival in ancient Roman religion held April 25, named for the god Robigus. Its main ritual was a dog sacrifice to protect grain fields from disease. Games (''ludi'') in the form of "major and minor" races were held. The Rob ...

(April 25), and

Serapia The Serapia or Sarapia was a Roman Empire, Roman Imperial Roman festival, religious festival devoted to the Greco-Egyptian god Serapis. It is found as an official holiday on 25 April as late as the Calendar of Filocalus in 354 AD. In farmers' alm ...

(April 25).

Floralia The Floralia was a Roman festival, festival of Religion in ancient Rome, ancient Roman religion in honor of the Flora (mythology), goddess Flora, held on 27 April during the Roman Republic, Republican era, or 28 April in the Julian calendar. The ...

was held April 27 during the

Republican era Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...

, or April 28 on the

, and lasted until May 3. However, these dates do not correspond to the modern

Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...

. The Lyrids

meteor shower A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at ext ...

appears on April 16 – April 26 each year, with the peak generally occurring on April 22. The

Eta Aquariids The Eta Aquariids are a meteor shower associated with Halley's Comet. The shower is visible from about April 19 to about May 28 each year with peak activity on or around May 5. Unlike most major annual meteor showers, there is no sharp peak fo ...

meteor shower also appears in April. It is visible from April 21 to May 20 each year, with peak activity on or around May 6. The Pi Puppids appear on April 23, but only in years around the parent comet's

perihelion An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values. Apsides perta ...

date. The

Virginids The Virginids are a meteor shower. There are many major and minor meteor shower streams that occur during the Virginid Complex, including the Alpha Virginids, Gamma Virginids, Eta Virginids, Theta Virginids, Iota Virginids, Lambda Virginids, Mu Vir ...

also shower at various dates in April. The "Days of April" (''journées d'avril'') is a name assigned in French history to a series of insurrections at Lyons, Paris and elsewhere, against the government of

Louis Philippe Louis Philippe I (6 October 1773 – 26 August 1850), nicknamed the Citizen King, was King of the French from 1830 to 1848, the penultimate monarch of France, and the last French monarch to bear the title "King". He abdicated from his throne ...

in 1834, which led to violent repressive measures, and to a famous trial known as the ''procès d'avril''.

Symbols

April's

birthstone A birthstone is a gemstone that represents a person's birth period, usually the month or zodiac sign. Birthstones are often worn as jewelry or a pendant necklace. History of birthstones Western custom The first-century historian Josephus bel ...

is the

diamond Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of e ...

. The

birth flower Floriography (language of flowers) is a means of Cryptography, cryptological communication through the use or arrangement of flowers. Meaning has been attributed to flowers for thousands of years, and some form of floriography has been practiced ...

is the common daisy ''(Bellis perennis)'' or the

sweet pea The sweet pea, ''Lathyrus odoratus'', is a flowering plant in the genus '' Lathyrus'' in the family Fabaceae ( legumes), native to Sicily, southern Italy and the Aegean Islands. It is an annual climbing plant, growing to a height of , where ...

. The

zodiac The zodiac is a belt-shaped region of the sky that extends approximately 8° north and south celestial latitude of the ecliptic – the apparent path of the Sun across the celestial sphere over the course of the year. Within this zodiac ...

signs are

Aries Aries may refer to: *Aries (astrology), an astrological sign *Aries (constellation), a constellation in the zodiac Arts, entertainment and media * ''Aries'' (album), by Luis Miguel, 1993 * ''Aries'' (EP), by Alice Chater, 2020 * "Aries" (song), ...

(until April 19) and

Taurus Taurus is Latin for 'bull' and may refer to: * Taurus (astrology), the astrological sign ** Vṛṣabha, in vedic astrology * Taurus (constellation), one of the constellations of the zodiac * Taurus (mythology), one of two Greek mythological ch ...

(April 20 onward). Signs in UT/GMT for 1950–2030. Daisy ntgr

Observances

''This list does not necessarily imply official status or general observance.''

Month-long

* In

Catholic The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...

and Orthodox

tradition A tradition is a system of beliefs or behaviors (folk custom) passed down within a group of people or society with symbolic meaning or special significance with origins in the past. A component of cultural expressions and folklore, common e ...

, April is the Month of the Resurrection of the Lord. April and March are the months in which the moveable

Feast A banquet (; ) is a formal large meal where a number of people consume food together. Banquets are traditionally held to enhance the prestige of a host, or reinforce social bonds among joint contributors. Modern examples of these purposes inc ...

Easter Sunday Easter, also called Pascha (Aramaic: פַּסְחָא , ''paskha''; Greek language, Greek: πάσχα, ''páskha'') or Resurrection Sunday, is a Christian festival and cultural holiday commemorating the resurrection of Jesus from the dead, de ...

is celebrated. * National Pet Month (UK)

United States

* Arab American Heritage Month * Autism Awareness Month * Cancer Control Month *

Community College A community college is a type of undergraduate higher education institution, generally leading to an associate degree, certificate, or diploma. The term can have different meanings in different countries: many community colleges have an open enr ...

Awareness Month * Confederate History Month (

Alabama Alabama ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South, Deep Southern regions of the United States. It borders Tennessee to the north, Georgia (U.S. state), Georgia to the east, Florida and the Gu ...

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...

Louisiana Louisiana ( ; ; ) is a state in the Deep South and South Central regions of the United States. It borders Texas to the west, Arkansas to the north, and Mississippi to the east. Of the 50 U.S. states, it ranks 31st in area and 25 ...

Mississippi Mississippi ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the s ...

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...

) * Financial Literacy Month * Jazz Appreciation Month * Mathematics and Statistics Awareness Month * Month of the Military Child *

National Poetry Month National Poetry Month, a celebration of poetry which takes place each April, was introduced in 1996 and is organized by the Academy of American Poets as a way to increase awareness and appreciation of poetry in the United States. The Academy of Am ...

* National Poetry Writing Month * Occupational Therapy Month * National Prevent Child Abuse Month * National Volunteer Month * Parkinson's Disease Awareness Month * Rosacea Awareness Month * Sexual Assault Awareness Month

United States food months

* Fresh Florida Tomato Month * National Food Month * National Grilled Cheese Month * National Pecan Month * National Soft Pretzel Month * National Soyfoods Month

Non-Gregorian

''(All Baha'i, Islamic, and Jewish observances begin at the sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted.)'' *

List of observances set by the Bahá'í calendar A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, bu ...

List of observances set by the Chinese calendar The traditional Chinese holidays are an essential part of harvests or prayer offerings. The most important Chinese holiday is the Chinese New Year (Spring Festival), which is also celebrated in overseas ethnic Chinese communities (for example in ...

List of observances set by the Hebrew calendar All observances begin at sunset the day prior to the Gregorian date listed unless otherwise noted, and end on nightfall of the date in question, which is defined as the appearance of three stars in the sky. On leap years (which occur every 2–3 ...

List of observances set by the Islamic calendar All Islamic calendar, Islamic observances begin at the sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted. Holidays for 1441 (2019-2020) {, class="wikitable" !width=20%, Date on Islamic Calenda ...

List of observances set by the Solar Hijri calendar Dates in this table are determined by when the March Equinox falls. It will fall on March 20 from 2018 to 2023. {, class="wikitable" , - style="background:#efefef;" ! Holiday date !!Holiday name !! Description !!March equinox on March 19 !!M ...

Movable

Variable; 2021 dates shown

* Youth Homelessness Matters Day * National Health Day (

Kiribati Kiribati, officially the Republic of Kiribati, is an island country in the Micronesia subregion of Oceania in the central Pacific Ocean. Its permanent population is over 119,000 as of the 2020 census, and more than half live on Tarawa. The st ...

): April 6 * Oral, Head and Neck Cancer Awareness Week (

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

): April 13–19 * National Park Week (

): April 18–26 *

Crime Victims' Rights Week National Crime Victims' Rights Week is an annual commemoration in the United States that promotes victims' rights and services. The week is marked by an award ceremony held in Washington, D.C., in which individuals and organizations that demonstra ...

(

): April 19–25 * National Volunteer Week: April 19–25 * European Immunization Week: April 20–26 *

Day of Silence Day of Silence is an annual day of action organized by GLSEN (Gay, Lesbian & Straight Education Network) to spread awareness about the effects of the bullying and harassment of lesbian, gay, bisexual, transgender, queer, and questioning (LGB ...

(

): April 24 * Pay It Forward Day: April 28 (

International observance Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...

) * Denim Day: April 29 (

) * Day of Dialogue (

) * Vaccination Week In The Americas * See:

List of movable Western Christian observances {{Update, date=February 2023 This is a list of movable observances within Western Christianity. It includes secular observances which are calculated by religious observances. ''This list does not necessarily imply either official status nor gene ...

* See: List of movable Eastern Christian observances

First Wednesday

* National Day of Hope (

)

First Saturday

* Ulcinj Municipality Day (

Ulcinj Ulcinj () is a town in the Coastal Montenegro, Coastal region of Montenegro and the capital of Ulcinj Municipality. It has an urban population of 11,488. As one of the oldest settlements in the Adriatic Sea, Adriatic coast, it was founded in 5th ...

, Montenegro)

First Sunday

Daylight saving time Daylight saving time (DST), also referred to as daylight savings time, daylight time (Daylight saving time in the United States, United States and Daylight saving time in Canada, Canada), or summer time (British Summer Time, United Kingdom, ...

ends (

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

and

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

) * Geologists Day (former

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

countries) * Kanamara Matsuri ( Kawasaki, Japan) *

Opening Day Opening Day is the day on which professional baseball leagues begin their regular season. For Major League Baseball (MLB) and most of the American minor leagues, this day typically falls during the first week of April, although in recent year ...

(

)

First full week

National Library Week National Library Week (sometimes known as Libraries Week) is observed by a number of countries, initially just by the United States (since 1957). First sponsored in 1958, National Library Week (NLW) as observed in the United States is sponsored b ...

(

) ** National Library Workers Day (

) (Tuesday of National Library week, April 9 in 2024) ** National Bookmobile Day (Wednesday of National Library week, April 10 in 2024) * National Public Health Week (

) * National Public Safety Telecommunicators Week (

)

= Second Wednesday

= *

International Day of Pink The International Day of Pink is a worldwide anti-bullying and anti-homophobia event held annually during the second week of April. Though similar to Pink Shirt Day (held in February) in that it also seeks to end all bullying, the Day of Pink ...

= Second Thursday

= * National Former Prisoner of War Recognition Day (

)

= Second Friday

= * Fast and Prayer Day (

Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...

) *

Air Force Day Air Force Day or Day of the Air Force is observed by several nations with an armed forces as a military holiday to recognize their country's air force. These holidays often hold the same status as any military's Armed Forces Day. By country A ...

(

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

) * Kamakura Matsuri at Tsurugaoka Hachiman (

Kamakura , officially , is a city of Kanagawa Prefecture in Japan. It is located in the Kanto region on the island of Honshu. The city has an estimated population of 172,929 (1 September 2020) and a population density of 4,359 people per km2 over the tota ...

, Japan), lasts until third Sunday.

Second Sunday

Children's Day Children's Day is a commemorative date celebrated annually in honour of children, whose date of observance varies by country. In 1925, International Children's Day was first proclaimed in Geneva during the World Conference on Child Welfare. Sin ...

(

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

)

Week of April 14

* Pan American Week (

)

Third Wednesday

* Administrative Professionals Day (

)

Third Thursday

National High Five Day The high five is a hand gesture whereby two people simultaneously raise one hand and slap the flat of their palm against the other. The gesture is often preceded verbally by a phrase like "Give me five", "High five", or "Up top". Its meaning var ...

(

)

Third Saturday

Record Store Day Record Store Day is a semi-annual event established in 2008 to "celebrate the culture of the independently owned record store". Held on one Saturday (typically the third) every April and every Black Friday in November, the day brings together f ...

(

)

Last full week of April

* Administrative Professionals Week (

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

) *

World Immunization Week World Immunization Week is a global public health campaign to raise awareness and increase rates of immunization against vaccine-preventable diseases around the world. It takes place each year during the last week of April (24th - 30th). Immuniz ...

Week of April 23

* Canada Book Week (

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

)

Week of the
new moon In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the naked eye, except when it is silhouetted against the Sun during a solar eclipse. ...

* International Dark Sky Week (

)

Third Monday

Patriots' Day Patriots' Day (Patriot's Day in Maine) is an annual event, formalized as a legal holiday or a special observance day in seven U.S. states, commemorating the battles of Lexington, Concord, and Menotomy, the inaugural battles of the America ...

(

Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...

Maine Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...

, United States) *

Queen's Official Birthday The King's Official Birthday or Queen's Official Birthday is the selected day in most Commonwealth realms on which the birthday of the monarch is officially celebrated in those countries. It does not necessarily correspond to the date of the m ...

(

Saint Helena, Ascension and Tristan da Cunha Saint Helena, Ascension and Tristan da Cunha is a British Overseas Territories, British Overseas Territory located in the Atlantic Ocean, South Atlantic and consisting of the island of Saint Helena, Ascension Island, and the archipelago of Tri ...

) * Sechseläuten (

Zurich Zurich (; ) is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zurich. It is in north-central Switzerland, at the northwestern tip of Lake Zurich. , the municipality had 448,664 inhabitants. The ...

, Switzerland)

= Wednesday of last full week of April

= * Administrative Professionals Day (

Hong Kong Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the wor ...

)

First Thursday after April 18

First Day of Summer First most commonly refers to: * First, the ordinal form of the number 1 First or 1st may also refer to: Acronyms * Faint Images of the Radio Sky at Twenty-Centimeters, an astronomical survey carried out by the Very Large Array * Far Infrared a ...

(

Iceland Iceland is a Nordic countries, Nordic island country between the Atlantic Ocean, North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is culturally and politically linked with Europe and is the regi ...

)

= Fourth Thursday

= *

Take Our Daughters and Sons to Work Day Take Our Daughters and Sons to Work Day, sometimes termed Take Your Child to Work Day, is a national day that gives children in the United States a glimpse into the working world. Developed by the Take Our Daughters And Sons To Work Foundatio ...

(

)

= Last Friday

= *

Arbor Day Arbor Day (or Arbour Day in some countries) is a Secularity, secular day of observance in which individuals and groups are encouraged to plant trees. Today, many countries observe such a holiday. Though usually observed in the spring, the date v ...

(

) * Día de la Chupina (

Rosario Rosario () is the largest city in the central provinces of Argentina, Argentine province of Santa Fe Province, Santa Fe. The city, located northwest of Buenos Aires on the west bank of the Paraná River, is the third-most populous city in the ...

, Argentina)

Last Friday in April to first Sunday in May

* Arbour Week in

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

= Last Saturday

= *

(

Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...

) * National Rebuilding Day (

) * National Sense of Smell Day (

) *

World Tai Chi and Qigong Day World Tai Chi and Qigong Day (WTCQD), also spelled World T'ai Chi and Ch'i Kung Day, is an annual event held the last Saturday of April each year to promote the related disciplines of tai chi and Qigong in nearly eighty countries since 1999. Ove ...

= Last Sunday

= *

Flag Day A flag day is a flag-related holiday, a day designated for flying a certain flag (such as a national flag) or a day set aside to celebrate a historical event such as a nation's adoption of its flag. Flag days are usually codified in national s ...

(

Åland Åland ( , ; ) is an Federacy, autonomous and Demilitarized zone, demilitarised region of Finland. Receiving its autonomy by a 1920 decision of the League of Nations, it is the smallest region of Finland by both area () and population (30,54 ...

, Finland) * Turkmen Racing Horse Festival (

Turkmenistan Turkmenistan is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ash ...

)

= April 27 (April 26 if April 27 is a Sunday)

= *

Koningsdag () or King's Day is a national holiday in the Kingdom of the Netherlands. Celebrated on 27 April (26 April if the 27th is a Sunday), the date marks the birth of King Willem-Alexander. When the Dutch monarch is female, the holiday is kno ...

(

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

)

= Last Monday

= *

Confederate Memorial Day Confederate Memorial Day (called Confederate Heroes Day in Texas and Florida, and Confederate Decoration Day in Tennessee) is a holiday observed in several Southern U.S. states on various dates since the end of the American Civil War. The holi ...

(

Georgia (U.S. state) Georgia is a U.S. state, state in the Southeastern United States. It borders Tennessee and North Carolina to the north, South Carolina and the Atlantic Ocean to the east, Florida to the south, and Alabama to the west. Of the List of states a ...

, and

, United States)

= Last Wednesday

= * International Noise Awareness Day

Fixed

April 1 Events Pre-1600 * 527 – Byzantine Emperor Justin I names his nephew Justinian I as co-ruler and successor to the throne. * 1081 – Alexios I Komnenos overthrows the Byzantine emperor Nikephoros III Botaneiates, and, after his tro ...

April Fools' Day April Fools' Day or April Fool's Day (rarely called All Fools' Day) is an annual custom on the 1st of April consisting of practical jokes, hoaxes, and pranks. Jokesters often expose their actions by shouting "April Fool " at the recipient. ...

(

Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...

) ** Civil Service Day (

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

) ** Cyprus National Day (

Cyprus Cyprus (), officially the Republic of Cyprus, is an island country in the eastern Mediterranean Sea. Situated in West Asia, its cultural identity and geopolitical orientation are overwhelmingly Southeast European. Cyprus is the List of isl ...

) ** Edible Book Day ** Fossil Fools Day ** Kha b-Nisan (

Assyrian people Assyrians (, ) are an ethnic group Indigenous peoples, indigenous to Mesopotamia, a geographical region in West Asia. Modern Assyrians Assyrian continuity, share descent directly from the ancient Assyrians, one of the key civilizations of Mesop ...

) ** National Civil Service Day (

) ** Odisha Day (

Odisha Odisha (), formerly Orissa (List of renamed places in India, the official name until 2011), is a States and union territories of India, state located in East India, Eastern India. It is the List of states and union territories of India by ar ...

, India) ** Start of Testicular Cancer Awareness week (

), April 1–7 **

Season for Nonviolence Season for Nonviolence was established in 1998 by Arun Gandhi, Mohandas Gandhi's grandson, as a yearly event celebrating the philosophies and lives of Mohandas Gandhi and Martin Luther King Jr. The idea was developed with the help of Dr. Michael ...

January 30 – April 4 *

April 2 Events Pre-1600 * 1513 – Having spotted land on March 27, Spanish explorer Juan Ponce de León comes ashore on what is now the U.S. state of Florida, landing somewhere between the modern city of St. Augustine and the mouth of the St ...

** International Children's Book Day (

) **

Malvinas Day Malvinas Day (), officially Day of the Veterans and Fallen of the Malvinas War (''Día del Veterano y de los Caídos en la Guerra de las Malvinas''), is a public holiday in Argentina, observed each year on 2 April. The name refers to the Falkl ...

(

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

) ** National Peanut Butter and Jelly Day (

) ** Thai Heritage Conservation Day (

) ** Unity of Peoples of Russia and Belarus Day (

Belarus Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Belarus spans an a ...

) ** World Autism Awareness Day (

) *

April 3 Events Pre-1600 * 686 – Maya king Yuknoom Yich'aak K'ahk' assumes the crown of Calakmul. * 1043 – Edward the Confessor is crowned King of England. * 1077 – The Patriarchate of Friûl, the first Friulian state, is created. ...

April 4 Events Pre-1600 * 503 BC – Roman consul Agrippa Menenius Lanatus celebrates a triumph for a military victory over the Sabines. * 190 – Dong Zhuo has his troops evacuate the capital Luoyang and burn it to the ground. * 611 &nd ...

(

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

) ** Independence Day (Senegal) ** International Day for Mine Awareness and Assistance in Mine Action **

Peace Day (Angola) Angola has twelve public holidays that can be increased by bridge holidays if a holiday falls on a Tuesday or Thursday. 2022 has fifteen national holidays. Notes References Angola Culture of Angola Society of Angola Holidays A ho ...

April 5 Events Pre-1600 * 823 – Lothair I is crowned King of Italy by Pope Paschal I. * 919 – The Fatimid invasion of Egypt (919–921), second Fatimid invasion of Medieval Egypt, Egypt begins, when the Fatimid heir-apparent, Al-Qa'im (Fa ...

(

Palestinian territories The occupied Palestinian territories, also referred to as the Palestinian territories, consist of the West Bank (including East Jerusalem) and the Gaza Strip—two regions of the former Mandate for Palestine, British Mandate for Palestine ...

) ** National Caramel Day (United States) ** Sikmogil (South Korea) *

April 6 Events Pre–1600 *46 BC – Julius Caesar defeats Caecilius Metellus Scipio and Marcus Porcius Cato (Cato the Younger) at the Battle of Thapsus. * 402 – Stilicho defeats the Visigoths under Alaric in the Battle of Pollentia. * ...

** Chakri Day (Thailand) ** National Beer Day (United Kingdom) ** New Beer's Eve (United States) **

Tartan Day Tartan Day is a celebration of Scottish heritage and the cultural contributions of Scottish and Scottish-diaspora figures of history. The name refers to tartan, a patterned woollen cloth associated with Scotland. The event originated in Nova ...

(United States & Canada) *

April 7 Events Pre-1600 * 451 – Attila the Hun captures Metz in France, killing most of its inhabitants and burning the town. * 529 – First '' Corpus Juris Civilis'', a fundamental work in jurisprudence, is issued by Eastern Roman Em ...

(Slovenia) ** Genocide Memorial Day (Rwanda), and its related observance: *** International Day of Reflection on the 1994 Rwanda Genocide (

United Nations The United Nations (UN) is the Earth, global intergovernmental organization established by the signing of the Charter of the United Nations, UN Charter on 26 June 1945 with the stated purpose of maintaining international peace and internationa ...

) ** Motherhood and Beauty Day (Armenia) **

National Beer Day (United States) National Beer Day is celebrated in the United States every year on April 7, marking the day that the Cullen–Harrison Act came into force after having been signed into law by President Franklin D. Roosevelt on March 22, 1933. April 6, the da ...

** Sheikh Abeid Amani Karume Day (Tanzania) ** Women's Day (Mozambique) **

World Health Day World Health Day is a global health awareness day celebrated every year on 7 April, under the sponsorship of the World Health Organization (WHO), as well as other related organizations. In 1948, the WHO held the First World Health Assembly. Th ...

(

) *

April 8 Events Pre-1600 * 217 – Roman emperor Caracalla is assassinated and is succeeded by his Praetorian Guard prefect, Marcus Opellius Macrinus. * 876 – The Battle of Dayr al-'Aqul saves Baghdad from the Saffarids. * 1139 – ...

Buddha's Birthday Buddha's Birthday or Buddha Day (also known as Buddha Jayanti, Buddha Purnima, and Buddha Pournami) is a primarily Buddhist festival that is celebrated in most of South Asia, South, Southeast Asia, Southeast and East Asia, commemorating the bir ...

(Japan only, other countries follow different calendars) ** Feast of the First Day of the Writing of the Book of the Law (

Thelema Thelema () is a Western esotericism, Western esoteric and occult social or spiritual philosophy and a new religious movement founded in the early 1900s by Aleister Crowley (1875–1947), an English writer, mystic, occultist, and ceremonial ma ...

) **

International Romani Day The International Romani Day (8 April) is a day to celebrate Romani culture and raise awareness of the issues facing Romani people. Origin The day was officially declared in 1990 in Serock, Poland, the site of the fourth World Romani Congre ...

(

) *

April 9 Events Pre-1600 * 193 – The distinguished soldier Septimius Severus is proclaimed emperor by the army in Illyricum. * 475 – Byzantine Emperor Basiliscus issues a circular letter (''Enkyklikon'') to the bishops of his empire, ...

** Anniversary of the German Invasion of Denmark (Denmark) ** Baghdad Liberation Day (

Iraqi Kurdistan Iraqi Kurdistan or Southern Kurdistan () refers to the Kurds, Kurdish-populated part of northern Iraq. It is considered one of the four parts of Greater Kurdistan in West Asia, which also includes parts of southeastern Turkey (Northern Kurdist ...

) ** Constitution Day (Kosovo) ** Day of National Unity (Georgia) ** Day of the Finnish Language (Finland) ** Day of Valor or ''Araw ng Kagitingan'' (Philippines) ** Feast of the Second Day of the Writing of the Book of the Law (

) ** International Banshtai Tsai Day ** Martyr's Day (Tunisia) ** National Former Prisoner of War Recognition Day (United States) ** Remembrance for Haakon Sigurdsson (

The Troth The Troth, formerly the Ring of Troth, is an American-based international heathen organization.On its mai ...

) ** Vimy Ridge Day (Canada) *

April 10 Events Pre-1600 * 428 – Nestorius becomes the Patriarch of Constantinople. * 837 – Halley's Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles). * 140 ...

** Day of the Builder (Azerbaijan) ** Feast of the Third Day of the Writing of the Book of the Law (

) ** Siblings Day (

) *

April 11 Events Pre-1600 * 491 – Flavius Anastasius becomes Byzantine emperor, with the name of Anastasius I. * 1241 – Batu Khan defeats Béla IV of Hungary at the Battle of Mohi. *1512 – War of the League of Cambrai: Franco-Ferra ...

** Juan Santamaría Day, anniversary of his death in the Second Battle of Rivas. (Costa Rica) **

International Louie Louie Day "Louie Louie" is a rhythm and blues song written and composed by American musician Richard Berry (musician), Richard Berry in 1955, recorded in 1956, and released in 1957. It is best known for the 1963 hit version by the Kingsmen and has become ...

** National Cheese Fondue Day (United States) ** World Parkinson's Day *

April 12 Events Pre-1600 * 240 – Shapur I becomes co-emperor of the Sasanian Empire with his father Ardashir I. * 467 – Anthemius is elevated to Emperor of the Western Roman Empire. * 627 – King Edwin of Northumbria is converted to ...

(Bolivia and Haiti) ** Commemoration of first human in space by

Yuri Gagarin Yuri Alekseyevich Gagarin; Gagarin's first name is sometimes transliterated as ''Yuriy'', ''Youri'', or ''Yury''. (9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut who, aboard the first successful Human spaceflight, crewed sp ...

: ***

Cosmonautics Day Cosmonautics Day () is an anniversary celebrated in Russia and some other post-Soviet states on 12 April.

(Russia) *** International Day of Human Space Flight *** Yuri's Night (

) ** Halifax Day (

North Carolina North Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, South Carolina to the south, Georgia (U.S. stat ...

) ** National Grilled Cheese Sandwich Day (United States) ** National Redemption Day (Liberia) *

April 13 Events Pre-1600 * 1111 – Henry V, King of Germany, is crowned Holy Roman Emperor. * 1204 – Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire. * 1455 – Thirteen Years' War: ...

** Jefferson's Birthday (United States) ** Katyn Memorial Day (

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

) **

Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...

(

Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...

) ** First day of

Thingyan Thingyan (/sɛŋkəmɑ/ ; , Old Mon language, Old Mon: သင်ကြာန် ), also known as the Myanmar New Year, is a festival that usually occurs in middle of April. Thingyan marks the transition from the old year to the new one, based on ...

(

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

) (April 13–16) ** Unfairly Prosecuted Persons Day (

Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m ...

) *

April 14 Events Pre-1600 * 43 BC – Legions loyal to the Roman Senate, commanded by Gaius Pansa, defeat the forces of Mark Antony in the Battle of Forum Gallorum. * 69 – Vitellius, commanding Rhine-based armies, defeats Roman emperor ...

** ʔabusibaree (

Okinawa Islands The are an island group in Okinawa Prefecture, Japan, and are the principal island group of the prefecture. The Okinawa Islands are part of the larger Ryukyu Islands group and are located between the Amami Islands of Kagoshima Prefecture to the ...

, Japan) ** Ambedkar Jayanti (India) ** Black Day (South Korea) ** Commemoration of Anfal Genocide Against the Kurds (

) ** Dhivehi Language Day (Maldives) ** Day of Mologa (

Yaroslavl Oblast Yaroslavl Oblast is a federal subjects of Russia, federal subject of Russia (an oblast), which is located in the Central Federal District, surrounded by the Tver Oblast, Tver, Moscow Oblast, Moscow, Ivanovo Oblast, Ivanovo, Vladimir Oblast, Vlad ...

, Russia) ** Day of the Georgian language (

Georgia (country) Georgia is a country in the Caucasus region on the coast of the Black Sea. It is located at the intersection of Eastern Europe and West Asia, and is today generally regarded as part of Europe. It is bordered to the north and northeast by Russ ...

) ** Season of Emancipation (April 14 to August 23) (Barbados) ** N'Ko Alphabet Day ( Mande speakers) **

Pohela Boishakh Pohela Boishakh () is the Bengali New Year celebrated by the Bengalis, Bengali people worldwide and as a holiday on 14 April in Bangladesh and 15 April or 14 April (leap year) in the Indian states of West Bengal, Tripura, Jharkhand and Assam ( ...

(Bangladesh) **

Pana Sankranti Maha Bishuba Sankranti (), also known as Pana Sankranti, (), is the traditional new year day festival of Odia people in Odisha, India. The festival occurs in the solar Odia calendar (the lunisolar Hindu calendar followed in Odisha) on the first ...

(

, India) **

Puthandu Puthandu (), also known as Tamil New Year (), is the first day of year on the Tamil calendar that is traditionally celebrated as a festival by Tamils. The festival date is set with the solar cycle of the solar Hindu calendar, as the first day ...

(

Tamils The Tamils ( ), also known by their endonym Tamilar, are a Dravidian peoples, Dravidian ethnic group who natively speak the Tamil language and trace their ancestry mainly to the southern part of the Indian subcontinent. The Tamil language is o ...

) (India, Malaysia, Singapore, Sri Lanka) ** Second day of

Songkran In many countries of South Asia and South East Asia, the traditional new year is calculated on the sun's entry into the constellation Aries as per the regional Hindu calendars or Buddhist calendars. The sun's entry into Aries is known as Sank ...

(Thailand) **

Pan American Day Pan American Day is a holiday observed by several countries in North and South America. It commemorates the First International Conference of American States which concluded on April 14, 1890, creating the International Union of American Republ ...

(several countries in the Americas) ** The first day of Takayama Spring Festival (

Takayama, Gifu Takayama City Hall is a city located in Gifu Prefecture, Japan. , the city had an estimated population of 88,473 in 35,644 households, and a population density of 41 persons per km2. The total area of the city was making it the largest cit ...

, Japan) **

Vaisakh Vaisakh (Shahmukhi: ; Gurmukhi: , ) is the second month in the Nanakshahi calendar and the Punjabi calendar. This month coincides with April and May in the Gregorian calendar and to Vaisakha in the Hindu calendar and the Indian national calend ...

(

Punjab Punjab (; ; also romanised as Panjāb or Panj-Āb) is a geopolitical, cultural, and historical region in South Asia. It is located in the northwestern part of the Indian subcontinent, comprising areas of modern-day eastern Pakistan and no ...

), (India and Pakistan) ** Youth Day (Angola) *

April 15 Events Pre-1600 * 769 – The Lateran Council ends by condemning the Council of Hieria and anathematizing its iconoclastic rulings. * 1071 – Bari, the last Byzantine possession in southern Italy, is surrendered to Robert Guisca ...

** Day of the Sun (North Korea). ** Hillsborough Disaster Memorial (

Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...

, England) ** Jackie Robinson Day (United States) **

(

West Bengal West Bengal (; Bengali language, Bengali: , , abbr. WB) is a States and union territories of India, state in the East India, eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabi ...

, India) (Note: celebrated on

in Bangladesh) ** Last day of

(Thailand) **

Tax Day In the United States, Tax Day is the day on which individual income Tax return (United States), tax returns are due to be submitted to the Federal government of the United States, federal government. Since 1955, Tax Day has typically fallen on ...

, the official deadline for filing an individual

tax return A tax return is a form on which a person or organization presents an account of income and circumstances, used by the tax authorities to determine liability for tax. Tax returns are usually processed by each country's tax authority, known as ...

(or requesting an extension). (United States, Philippines) ** Universal Day of Culture ** World Art Day *

April 16 Events Pre-1600 * 1457 BC – Battle of Megido – the first battle to have been recorded in what is accepted as relatively reliable detail. * 69 – Defeated by Vitellius' troops at Bedriacum, Roman emperor Otho commits suicide. * ...

** Birthday of José de Diego (Puerto Rico, United States) ** Birthday of Queen Margrethe II (Denmark) **

Emancipation Day Emancipation Day is observed in many former European colonies in the West Indies and parts of the United States on various dates to commemorate the emancipation of African slave trade#Abolition, slaves of African descent. In much of the British ...

(

Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...

, United States) ** Foursquare Day (

) ** Memorial Day for the Victims of the Holocaust (Hungary) ** National Healthcare Decisions Day (United States) ** Remembrance of Chemical Attack on Balisan and Sheikh Wasan (

) ** World Voice Day *

April 17 Events Pre-1600 * 1080 – Harald III of Denmark dies and is succeeded by Canute IV, who would later be the first Dane to be canonized. * 1349 – The rule of the Bavand dynasty in Mazandaran is brought to an end by the murder of H ...

** Evacuation Day (Syria) ** FAO Day (Iraq) ** Flag Day (American Samoa) ** Malbec World Day ** National Cheeseball Day (United States) ** National Espresso Day (Italy) ** Women's Day (Gabon) ** World Hemophilia Day *

April 18 Events Pre-1600 * 796 – King Æthelred I of Northumbria is murdered in Corbridge by a group led by his ealdormen, Ealdred and Wada. The ''patrician'' Osbald is crowned, but abdicates within 27 days. * 1428 – Peace of Ferrara ...

** Anniversary of the Victory over the Teutonic Knights in the Battle of the Ice, 1242 (Russia) ** Army Day (Iran) ** Coma Patients' Day (Poland) ** Friend's Day (Brazil) ** Independence Day (Zimbabwe) ** International Day For Monuments and Sites ** Invention Day (Japan) *

April 19 Events Pre-1600 *AD 65 – The freedman Milichus betrays Pisonian conspiracy, Piso's plot to kill the Roman emperor, Emperor Nero and all of the List of conspiracies (political), conspirators are arrested. * 531 – Battle of Callini ...

** Army Day (Brazil) ** Beginning of the Independence Movement (Venezuela) ** Bicycle Day ** Dutch-American Friendship Day (United States) ** Holocaust Remembrance Day (Poland) ** Indigenous Peoples Day (Brazil) ** King Mswati III's birthday (Eswatini) ** Landing of the 33 Patriots Day (Uruguay) ** National Garlic Day (United States) ** National Rice Ball Day (United States) ** Primrose Day (United Kingdom) *

April 20 Events Pre-1600 * 1303 – The Sapienza University of Rome is instituted by a bull of Pope Boniface VIII. 1601–1900 * 1653 – Oliver Cromwell dissolves England's Rump Parliament. * 1657 – English Admiral Robert Blake destroy ...

420 (cannabis culture) 420, 4:20 or 4/20 (pronounced four-twenty) is cannabis culture slang for cannabis consumption, especially smoking around the time 4:20 p.m. (16:20). It also refers to cannabis-oriented celebrations that take place annually on April 20 (4/ ...

(International) ** UN Chinese Language Day (

) *

April 21 Events Pre-1600 * 753 BC – Romulus founds Rome ( traditional date). * 43 BC – Battle of Mutina: Mark Antony is again defeated in battle by Aulus Hirtius, who is killed. Antony fails to capture Mutina and Decimus Brutus is mur ...

Natale di Roma Natale di Roma () is an annual festival held in Rome on April 21 to celebrate the legendary founding of the city.Plutarch, ''Parallel Lives - Life of Romulus''12.2(from LacusCurtius) According to legend, Romulus is said to have founded the city ...

(Italy) ** A&M Day (

Texas A&M University Texas A&M University (Texas A&M, A&M, TA&M, or TAMU) is a public university, public, Land-grant university, land-grant, research university in College Station, Texas, United States. It was founded in 1876 and became the flagship institution of ...

) ** Civil Service Day (India) ** Day of Local Self-Government (Russia) ** Grounation Day (

Rastafari movement Rastafari is an Abrahamic religion that developed in Jamaica during the 1930s. It is classified as both a new religious movement and a social movement by scholars of religion. There is no central authority in control of the movement and much ...

) ** Heroic Defense of Veracruz (Mexico) ** Kang Pan-sok's Birthday (North Korea) **

Kartini Day The following table indicates declared Indonesian government national holidays. Cultural variants also provide opportunity for holidays tied to local events. Beside official holidays, there are the so-called "''libur bersama''" or "'' cuti bersa ...

(Indonesia) ** Local Self Government Day (Russia) ** National Tree Planting Day (Kenya) **

San Jacinto Day San Jacinto Day is the celebration of the Battle of San Jacinto on April 21, 1836. It was the final battle of the Texas Revolution where Texas won its independence from Mexico. It is an official "partial staffing holiday" in the State of Texas ( ...

(

) **

(

Falkland Islands The Falkland Islands (; ), commonly referred to as The Falklands, is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and from Cape Dub ...

) **

Tiradentes' Day In Brazil, public holidays may be legislated at the federal, statewide and municipal levels. Most holidays are observed nationwide. Apart from the yearly official holidays (listed below), the Constitution of Brazil also establishes that electio ...

(Brazil) ** Vietnam Book Day (Vietnam) *

April 22 Events Pre-1600 * 1500 – Portuguese navigator Pedro Álvares Cabral lands in Brazil ( discovery of Brazil). * 1519 – Spanish conquistador Hernán Cortés establishes a settlement at Veracruz, Mexico. * 1529 – Treaty of Zara ...

Discovery Day Discovery Day is the name of several holidays commemorating the discovery of land, gold, and other significant national discoveries. The Bahamas The Bahamas Discovery Day was a public holiday on October 12, that celebrated the arrival of Christop ...

(Brazil) **

Earth Day Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally through earthday.org (formerly Earth Day Network) includin ...

(

) and its related observance: *** International Mother Earth Day ** Holocaust Remembrance Day (Serbia) ** National Jelly Bean Day (United States) *

April 23 Events Pre-1600 * 215 BC – A temple is built on the Capitoline Hill dedicated to Venus Erycina to commemorate the Roman defeat at Lake Trasimene. *599 – Maya king Uneh Chan of Calakmul attacks rival city-state Palenque in so ...

** Castile and León Day (

Castile and León Castile and León is an Autonomous communities of Spain, autonomous community in northwestern Spain. Castile and León is the largest autonomous community in Spain by area, covering 94,222 km2. It is, however, sparsely populated, with a pop ...

, Spain) ** German Beer Day (Germany) **

Independence Day An independence day is an annual event memorialization, commemorating the anniversary of a nation's independence or Sovereign state, statehood, usually after ceasing to be a group or part of another nation or state, or after the end of a milit ...

( Conch Republic,

Key West, Florida Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Sigsbee Park, Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Islan ...

) ** International Pixel-Stained Technopeasant Day ** Khongjom Day (

Manipur Manipur () is a state in northeastern India with Imphal as its capital. It borders the Indian states of Assam to the west, Mizoram to the south, and Nagaland to the north and shares the international border with Myanmar, specifically t ...

, India) ** National Sovereignty and Children's Day (Turkey and Northern Cyprus) ** Navy Day (China) **

St George's Day Saint George's Day is the Calendar of saints, feast day of Saint George, celebrated by Christian churches, countries, regions, and cities of which he is the Patronages of Saint George, patron saint, including Albania, Bosnia and Herzegovina, Bu ...

(England) and its related observances: *** Canada Book Day (Canada) *** La Diada de Sant Jordi (

Catalonia Catalonia is an autonomous community of Spain, designated as a ''nationalities and regions of Spain, nationality'' by its Statute of Autonomy of Catalonia of 2006, Statute of Autonomy. Most of its territory (except the Val d'Aran) is situate ...

, Spain) ***

World Book Day World Book Day, also known as World Book and Copyright Day or International Day of the Book, is an annual event organized by UNESCO (United Nations Educational, Scientific and Cultural Organization) to promote reading, publishing, and copyright ...

** UN English Language Day (

) *

April 24 Events Pre-1600 * 1479 BC – Thutmose III ascends to the throne of Egypt, although power effectively shifts to Hatshepsut (according to the Low Chronology of the 18th dynasty). * 1183 BC – Traditional reckoning of the Fall of Troy ...

** Armenian Genocide Remembrance Day (Armenia) ** Concord Day (Niger) ** Children's Day (Zambia) ** Democracy Day (Nepal) ** Fashion Revolution Day ** Flag Day (Ireland) ** International Sculpture Day ** Kapyong Day (Australia) ** Labour Safety Day (Bangladesh) ** National Panchayati Raj Day (India) ** National Pigs in a Blanket Day (United States) ** Republic Day (The Gambia) ** St Mark's Eve (

Western Christianity Western Christianity is one of two subdivisions of Christianity (Eastern Christianity being the other). Western Christianity is composed of the Latin Church and Protestantism, Western Protestantism, together with their offshoots such as the O ...

) ** World Day for Laboratory Animals *

April 25 Events Pre-1600 * 404 BC – Admiral Lysander and King Pausanias of Sparta blockade Athens and bring the Peloponnesian War to a successful conclusion. * 775 – The Battle of Bagrevand puts an end to an Armenian rebellion against th ...

** Anniversary of the First Cabinet of Kurdish Government (

) **

Anzac Day Anzac Day is a national day of remembrance in Australia, New Zealand and Tonga that broadly commemorates all Australians and New Zealanders "who served and died in all wars, conflicts, and peacekeeping operations" and "the contribution and ...

(Australia, New Zealand) ** Arbor Day (Germany) ** DNA Day ** Feast of Saint Mark (

) **

Flag Day (Faroe Islands) The Faroe Islands ( ) (alt. the Faroes) are an archipelago in the North Atlantic Ocean and an autonomous territory of the Kingdom of Denmark. Located between Iceland, Norway, and the United Kingdom, the islands have a population of 54,609 ...

** Flag Day (Eswatini) ** Freedom Day (Portugal) **

Liberation Day (Italy) Liberation Day ( ), also known as the Anniversary of Italy's Liberation (), Anniversary of the Resistance (), or simply 25 April ( ), is a national holiday in Italy that commemorates the victory of the Italian resistance movement against Nazi Ge ...

** Major Rogation (

) **

Military Foundation Day Military Foundation Day () is an annual public holiday in North Korea falling on 8 February. Background North Korean historiography has two competing dates for the founding of the modern Korean People's Army (KPA): 25 April 1932 and 8 Februa ...

(North Korea) ** National Zucchini Bread Day (United States) ** Parental Alienation Awareness Day ** Red Hat Society Day ** Sinai Liberation Day (Egypt) **

World Malaria Day World Malaria Day (WMD) is an international observance commemorated every year on 25 April and recognizes global efforts to control malaria. Globally, 3.3 billion people in 106 countries are at risk of malaria.World Health Organizatio''World Mala ...

April 26 Events Pre-1600 * 1336 – Francesco Petrarca (Petrarch) ascends Mont Ventoux. * 1478 – The Pazzi family attack on Lorenzo de' Medici in order to displace the ruling Medici family kills his brother Giuliano during High Mass in Fl ...

Chernobyl disaster On 26 April 1986, the no. 4 reactor of the Chernobyl Nuclear Power Plant, located near Pripyat, Ukrainian Soviet Socialist Republic, Ukrainian SSR, Soviet Union (now Ukraine), exploded. With dozens of direct casualties, it is one of only ...

related observances: *** Memorial Day of Radiation Accidents and Catastrophes (Russia) *** Day of Remembrance of the Chernobyl tragedy (Belarus) **

(

, United States) ** Hug A Friend Day ** Lesbian Visibility Day ** National Pretzel Day (United States) ** Old Permic Alphabet Day ** Union Day (Tanzania) **

World Intellectual Property Day World Intellectual Property Day is List of minor secular observances#April, observed annually on 26 April. The event was established by the World Intellectual Property Organization (WIPO) in 2000 to "Raising awareness, raise awareness of how pat ...

April 27 Events Pre-1600 * 247 – Philip the Arab marks the millennium of Rome with a celebration of the '' ludi saeculares''. * 395 – Emperor Arcadius marries Aelia Eudoxia, daughter of the Frankish general Flavius Bauto. She becomes ...

** Day of Russian Parliamentarism (Russia) ** Day of the Uprising Against the Occupying Forces (Slovenia) **

(Moldova) **

Freedom Day (South Africa) Freedom Day is a public holiday in South Africa celebrated on 27 April. It commemorates the first post-apartheid elections held on that day in 1994 and the day on which the new constitution was introduced. The elections were the first national ...

*** UnFreedom Day ** Independence Day (Sierra Leone) ** Independence Day (Togo) ** National Day (

Mayotte Mayotte ( ; , ; , ; , ), officially the Department of Mayotte (), is an Overseas France, overseas Overseas departments and regions of France, department and region and single territorial collectivity of France. It is one of the Overseas departm ...

) ** National Day (Sierra Leone) ** National Prime Rib Day (United States) ** National Veterans' Day (Finland) *

April 28 Events Pre-1600 * 224 – The Battle of Hormozdgan is fought. Ardashir I defeats and kills Artabanus V, effectively ending the Parthian Empire. * 357 – Emperor Constantius II enters Rome for the first time to celebrate his victor ...

** Lawyers' Day (

Orissa, India Odisha (), formerly Orissa ( the official name until 2011), is a state located in Eastern India. It is the eighth-largest state by area, and the eleventh-largest by population, with over 41 million inhabitants. The state also has the thi ...

) ** Mujahideen Victory Day (Afghanistan) ** National Day (

Sardinia Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...

, Italy) **

National Heroes Day Heroes' Day or National Heroes' Day may refer to a number of commemorations of national heroes in different countries and territories. It is often held on the birthday of a national hero or heroine, or the anniversary of their great deeds that ...

(Barbados) ** Restoration of Sovereignty Day (Japan) ** Workers' Memorial Day and World Day for Safety and Health at Work (

international International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The T ...

) ***

National Day of Mourning A national day of mourning is a day, or one of several days, marked by mourning and memorial activities observed among the majority of a country's populace. They are designated by the national government. Such days include those marking the deat ...

(Canada) *

April 29 Events Pre-1600 * 801 – An earthquake in the Central Apennines hits Rome and Spoleto, damaging the basilica of San Paolo Fuori le Mura. * 1091 – Battle of Levounion: The Pechenegs are defeated by Byzantine Emperor Alexios I Kom ...

** Day of Remembrance for all Victims of Chemical Warfare (

) **

International Dance Day International Dance Day is a global celebration of dances promoted by the International Dance Council (CID) and the International Theatre Institute. The event takes place every year on 29 April, which is the anniversary of the birth of Jean- ...

(

UNESCO The United Nations Educational, Scientific and Cultural Organization (UNESCO ) is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) with the aim of promoting world peace and International secur ...

) ** Princess Bedike's Birthday (Denmark) ** National Shrimp Scampi Day (United States) **

Shōwa Day is a public holiday in Japan held on April 29. It honors the birthday of Emperor Shōwa (Hirohito), the reigning emperor from 1926 to 1989. Shō (昭) means "shining" or "bright", and wa (和) means "peace", signifying the "enlightened peace" ...

, traditionally the start of the Golden Week holiday period, which is April 29 and May 3–5. (Japan) *

April 30 Events Pre-1600 * 311 – The Diocletianic Persecution of Christians in the Roman Empire ends. * 1315 – Enguerrand de Marigny is hanged at the instigation of Charles, Count of Valois. *1492 – Spain gives Christopher Columbus ...

Armed Forces Day An Armed Forces Day, alongside its Military branch, branch-specific variants often referred to as Army or Soldier's Day, Navy or Sailor's Day, and Air Force or Aviator's Day, is a holiday dedicated to honoring the Military, armed forces, o ...

(

) ** Birthday of the King (Sweden) ** Camarón Day (

French Foreign Legion The French Foreign Legion (, also known simply as , "the Legion") is a corps of the French Army created to allow List of militaries that recruit foreigners, foreign nationals into French service. The Legion was founded in 1831 and today consis ...

) **

(Mexico) ** Consumer Protection Day (Thailand) **

Honesty Day Honesty Day is a holiday in the United States falling on April 30. It aims to encourage honesty and straightforward communication in politics, relationships, consumer relations and historical education. It was invented by M. Hirsh Goldberg, who cho ...

(United States) ** International Jazz Day (

) **

Martyrs' Day Martyrs' Day are days observed in or by some countries, including the United States, Japan, India, Brazil, Canada and Australia, to recognise martyrs such as soldiers, revolutionaries or victims of genocide. Below is a list of various Martyrs' Days ...

(Pakistan) ** May Eve, the eve of the first day of summer in the Northern hemisphere ''(see

May 1 Events Pre-1600 * 305 – Diocletian and Maximian retire from the office of Roman emperor. * 880 – The Nea Ekklesia is inaugurated in Constantinople, setting the model for all later cross-in-square Orthodox churches. * 1169 & ...

)'': ***

Beltane Beltane () or ''Bealtaine'' () is the Gaels, Gaelic May Day festival, marking the beginning of summer. It is traditionally held on 1 May, or about midway between the March equinox, spring equinox and summer solstice. Historically, it was widely ...

begins at sunset in the Northern hemisphere,

Samhain Samhain ( , , , ) or () is a Gaels, Gaelic festival on 1 November marking the end of the harvest season and beginning of winter or the "Celtic calendar#Medieval Irish and Welsh calendars, darker half" of the year.Dáithí Ó hÓgáin, Ó hÓ ...

begins at sunset in the Southern hemisphere. ( Neo-Druidic

Wheel of the Year The Wheel of the Year is an annual cycle of seasonal festivals, observed by a range of Modern paganism, modern pagans, marking the year's chief solar events (solstices and equinoxes) and the midpoints between them. Modern pagan observances are ...

) ***

Carodejnice Walpurgis Night (), an abbreviation of Saint Walpurgis Night (from the German language, German ), also known as Saint Walpurga's Eve (alternatively spelled Saint Walburga's Eve) and Walpurgisnacht, is the Vigil#Eves of religious celebrations ...

(Czech Republic and Slovakia) ***

Walpurgis Night Walpurgis Night (), an abbreviation of Saint Walpurgis Night (from the German language, German ), also known as Saint Walpurga's Eve (alternatively spelled Saint Walburga's Eve) and Walpurgisnacht, is the Vigil#Eves of religious celebrations ...

(Central and Northern Europe) ** National Persian Gulf Day (Iran) **

Reunification Day Reunification Day (), also known as Victory Day (), Liberation Day ( or ), or by its official name, Day of the Liberation of the South and National Reunification () is a public holiday in Vietnam that marks the day when the People's Army of Vi ...

(Vietnam) ** Russian State Fire Service Day (Russia) ** Tax Day (Canada) **

(Paraguay)

References

External links

National Arbor Day Foundation
{{Authority control *04

History

Symbols

Observances

Month-long

United States

United States food months

Non-Gregorian

Movable

Variable; 2021 dates shown

First Wednesday

First Saturday

First Sunday

First full week

= Second Wednesday

= Second Thursday

= Second Friday

Second Sunday

Week of April 14

Third Wednesday

Third Thursday

Third Saturday

Last full week of April

Week of April 23

Week of the new moon In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the naked eye, except when it is silhouetted against the Sun during a solar eclipse. ...

Third Monday

= Wednesday of last full week of April

First Thursday after April 18

= Fourth Thursday

= Last Friday

Last Friday in April to first Sunday in May

= Last Saturday

= Last Sunday

= April 27 (April 26 if April 27 is a Sunday)

= Last Monday

= Last Wednesday

Fixed

See also

References

External links

Week of the
new moon In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude. At this phase, the lunar disk is not visible to the naked eye, except when it is silhouetted against the Sun during a solar eclipse. ...