April is the fourth month of the year in the Gregorian and Julian calendars. It is the first of four months to have a length of 30 days, and the second of five months to have a length of less than 31 days. April is commonly associated with the season of

autumn Autumn, also known as fall in American English and Canadian English, 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 ( Sou ...

in parts of the Southern Hemisphere, and

spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...

in parts of 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 as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...

, where it is the seasonal equivalent to

October October is the tenth month of the year in the Julian and Gregorian calendars and the sixth of seven months to have a length of 31 days. The eighth month in the old calendar of Romulus , October retained its name (from Latin and Greek ''ôct ...

in the Southern Hemisphere and vice versa.

History

The Romans gave this month the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

name ''

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

''"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 Chambers (publisher), William and Robert Chambers (publisher ...

''. London: George Newnes, 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 sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never fa ...

, her Veneralia 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 ( ; grc-gre, Ἀφροδίτη, Aphrodítē; , , ) is an ancient Greek goddess associated with love, lust, beauty, pleasure, passion, and procreation. She was syncretized with the Roman goddess . Aphrodite's major symbols include ...

(''Aphros''), or from the

Etruscan __NOTOC__ Etruscan may refer to: Ancient civilization *The Etruscan language, an extinct language in ancient Italy *Something derived from or related to the Etruscan civilization **Etruscan architecture **Etruscan art **Etruscan cities **Etruscan ...

name ''

Apru APRU (the Association of Pacific Rim Universities) is a consortium of 61 leading research universities in 19 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 is known as the discoverer of Grimm's law of linguistics, the co-author of th ...

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. The term often includes the Julian calendar established by the reforms of the Roman dictator, dictator Julius Caesar and Roman emperor, emperor Augustus in the ...

, before '' Ianuarius'' and ''

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

'' were added by King

Numa Pompilius Numa Pompilius (; 753–672 BC; reigned 715–672 BC) was the 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 institutions are a ...

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") were some of the several 10-man commissions established by the Roman Republic. The most important were those of the two Decemvirates, formally the " decemvirate with consular power for writing ...

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

Julius Caesar Gaius Julius Caesar (; ; 12 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 a civil war, and ...

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

Anglo-Saxons The Anglo-Saxons were a Cultural identity, cultural group who inhabited England in the Early Middle Ages. They traced their origins to settlers who came to Britain from mainland Europe in the 5th century. However, the ethnogenesis of the Anglo- ...

called April ''ēastre-monaþ''. The

Venerable Bede Bede ( ; ang, Bǣda , ; 672/326 May 735), also known as Saint Bede, The Venerable Bede, and Bede the Venerable ( la, Beda Venerabilis), was an English monk at the monastery of St Peter and its companion monastery of St Paul in the Kingdom o ...

says in ''

The Reckoning of Time ''The Reckoning of Time'' ( la, De temporum ratione) is an Anglo-Saxon era treatise written in Medieval Latin by the Northumbrian monk Bede in 725. The treatise includes an introduction to the traditional ancient and medieval view of the cosmo ...

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

Easter Easter,Traditional names for the feast in English are "Easter Day", as in the '' Book of Common Prayer''; "Easter Sunday", used by James Ussher''The Whole Works of the Most Rev. James Ussher, Volume 4'') and Samuel Pepys''The Diary of Samuel ...

. 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; la, E(g)inhardus; 775 – 14 March 840) was a 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 ...

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, written by Einhard.Ogg, p. 109 The ''Life of Charlemagne'' is a 33 chapter long account starting with the full of the Mero ...

St George Saint George (Greek language, Greek: Γεώργιος (Geórgios), Latin language, Latin: Georgius, Arabic language, Arabic: القديس جرجس; died 23 April 303), also George of Lydda, was a Christians, Christian who is venerated as a sa ...

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

St Mark Mark the Evangelist ( la, Marcus; grc-gre, Μᾶρκος, Mârkos; arc, ܡܪܩܘܣ, translit=Marqōs; Ge'ez: ማርቆስ; ), also known as Saint Mark, is the person who is traditionally ascribed to be the author of the Gospel of Mark. Accor ...

'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. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

the symbolic 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 moon'', when

gymnosperm The gymnosperms ( lit. revealed seeds) are a group of seed-producing plants that includes conifers, cycads, ''Ginkgo'', and gnetophytes, forming the clade Gymnospermae. The term ''gymnosperm'' comes from the composite word in el, γυμνό� ...

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

made it 29 days long; finally

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

Augustus Caesar Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian, was the first Roman emperor; he reigned from 27 BC until his death in AD 14. He is known for being the founder of the Roman Pri ...

in 8 BC. Additionally in the Spanish colony, Las Islas Filipinas (now known as the Philippines), the month Aprilis had a significant meaning to the life of the natives as it was associated to the influence of the Chinese during the Spanish colonial period. The importance of this aspect to the lives of the natives was formerly associated to an event called "Abril na Ikaw" as it is closely linked to the famous trader, April Yu. In

Ancient Rome In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 B ...

, the festival of Cerealia was held for seven days from mid-to-late April, but exact dates are uncertain. Feriae Latinae was also held in April, with the date varying. Other ancient Roman observances include Veneralia (April 1), Megalesia (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 E ...

(April 15),

Parilia upright=1.5, ''Festa di Pales, o L'estate'' (1783), a reimagining of the Festival of Pales by Joseph-Benoît Suvée The Parilia is an ancient Roman festival of rural character performed annually on 21 April, aimed at cleansing both sheep and sh ...

(April 21), Vinalia Urbana,

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 Robi ...

, and Serapia were celebrated on (April 25).

Floralia The Floralia was a festival in ancient Roman religious practice in honor of the goddess Flora, held April 27 during the Republican era, or April 28 in the Julian calendar. The festival included ''Ludi Florae'', the "Games of Flora", which lasted ...

was held April 27 during the Republican era, or April 28 on the

Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandr ...

, 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 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 ...

. The

Lyrids The April Lyrids are a meteor shower lasting from April 16 to April 25 each year. The radiant of the meteor shower is located in the constellation Lyra, near its brightest star, Vega. The peak of the shower is typically around April 22 each year ...

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 extre ...

appears on April 16 – April 26 each year, with the peak generally occurring on April 22. Eta Aquariids meteor shower also appears in April. It is visible from about April 21 to about May 20 each year with peak activity on or around May 6. The

Pi Puppids The pi Puppids are a meteor shower associated with the comet 26P/Grigg-Skjellerup. The meteor stream was viewable around April 23 but only in years around the parent comet's perihelion date, the last being in 2003. However, as the planet Jupit ...

appear on April 23, but only in years around the parent comet's perihelion 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 Virg ...

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 (6 October 1773 – 26 August 1850) was King of the French from 1830 to 1848, and the penultimate monarch of France. As Louis Philippe, Duke of Chartres, he distinguished himself commanding troops during the Revolutionary War ...

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

April symbols

April's

birthstone A birthstone is a gemstone A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rock ...

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. Another solid form of carbon known as graphite is the Chemical stability, chemically stable form of car ...

. *

The

birth flower Floriography (language of flowers) is a means of 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 in tradition ...

is typically listed as either 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 sui ...

. * The

zodiac The zodiac is a belt-shaped region of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the Sun path, apparent path of the Sun across the celestial sphere over the course of the year. ...

signs for the month of April are

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

(until April 19) and

Taurus Taurus is Latin for 'bull' and may refer to: * Taurus (astrology), the astrological sign * Taurus (constellation), one of the constellations of the zodiac * Taurus (mythology), one of two Greek mythological characters named Taurus * ''Bos taurus ...

(April 20 onwards).. Signs in UT/GMT for 1950–2030.

April observances

''This list does not necessarily imply either official status nor general observance.''

Month-long observances

*In

Catholic The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

Protestant Protestantism is a Christian denomination, branch of Christianity that follows the theological tenets of the Reformation, Protestant Reformation, a movement that began seeking to reform the Catholic Church from within in the 16th century agai ...

and

Orthodox Orthodox, Orthodoxy, or Orthodoxism may refer to: Religion * Orthodoxy, adherence to accepted norms, more specifically adherence to creeds, especially within Christianity and Judaism, but also less commonly in non-Abrahamic religions like Neo-pag ...

tradition A tradition is a belief or behavior (folk custom) passed down within a group or society with symbolic meaning or special significance with origins in the past. A component of cultural expressions and folklore, common examples include holidays or ...

, April is the Month of the Resurrection of the Lord. April and March are the months in which is celebrated the moveable Feast of Easter Sunday. * National Pet Month (

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

)

United States

Arab American Heritage Month National Arab American Heritage Month (NAAHM) takes place in April. It celebrates the Arab American heritage and culture and pays tribute to the contributions of Arab Americans and Arabic-speaking Americans. History Beginning in the 1990s, Arab A ...

*Autism Awareness Month *

Cancer Control Month Cancer Control Month is a month-long United States observance established by . 2013 edition (a) The president is requested to issue each year a proclamation— :(1) designating April as Cancer Control Month; :(2) to invite each year the chief ...

Community College A community college is a type of educational institution. The term can have different meanings in different countries: many community colleges have an "open enrollment" for students who have graduated from high school (also known as senior sec ...

Awareness Month *

Confederate History Month Confederate History Month is a month designated by seven state governments in the Southern United States for the purpose of recognizing and honoring the history of the Confederate States of America. April has traditionally been chosen, as Confeder ...

(

Alabama (We dare defend our rights) , anthem = "Alabama (state song), Alabama" , image_map = Alabama in United States.svg , seat = Montgomery, Alabama, Montgomery , LargestCity = Huntsville, Alabama, Huntsville , LargestCounty = Baldwin County, Al ...

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

, Georgia,

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 ...

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...

) * Donate Life Month * Financial Literacy Month *

Jazz Appreciation Month Jazz Appreciation Month (JAM) is a music festival held every April in the United States, in honor of jazz as an early American art form. JAM was created in 2001 by John Edward Hasse, curator of the Smithsonian's National Museum of American Histor ...

* 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 Amer ...

National Poetry Writing Month National Poetry Writing Month (also known as NaPoWriMo) is a creative writing project held annually in April in which participants attempt to write a poem each day for one month. NaPoWriMo coincides with the National Poetry Month in the United State ...

* Occupational Therapy Month * National Prevent Child Abuse Month *

National Volunteer Month National Volunteer month in the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal ...

* Parkinson's Disease Awareness Month *Rosacea Awareness Month *

Sexual Assault Awareness Month Sexual Assault Awareness Month (SAAM) is an annual campaign to raise public awareness about sexual assault and educate communities and individuals on how to prevent sexual violence. It is observed in April. Each year during the month of April, s ...

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 observances: 2021

''(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 any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union ...

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 * List of observances set by the Islamic calendar *

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 2018-2023. {, class="wikitable" , - style="background:#efefef;" ! Holiday date !!Holiday name !! Description !!March equinox on March 19 !!March Eq ...

Movable observances, 2021 dates

* Youth Homelessness Matters Day * National Health Day (

Kiribati Kiribati (), officially the Republic of Kiribati ( gil, ibaberikiKiribati),Kiribati
''The Wor ...

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

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

): 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 European Immunization Week (EIW) is an annual regional initiative, coordinated by the World Health Organization Regional Office for Europe (WHO/Europe), to promote immunization against vaccine-preventable diseases since its launch in 2008. EIW acti ...

: April 20–26 * Day of Silence (

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

Denim Day Denim Day takes place on the last Wednesday of April, which is Sexual Assault Awareness Month. This day of action and awareness is an event in which people are encouraged to wear denim to combat victim blaming and educate others about sexual viole ...

: April 29 ( International observance) *

Day of Dialogue In the United States, the Day of Dialogue (formerly Day of Truth) is the Christian fundamentalist group Focus on the Family's annual event to oppose LGBTQ rights. It was founded by the Alliance Defense Fund in 2005 to oppose the Day of Silence, ...

(

) *

Vaccination Week In The Americas Vaccination Week In The Americas (VWA) is an annual public health campaign by the member states of the Pan American Health Organization (PAHO) to promote equity and access to immunization. It is marked each year during the last week of April. Sin ...

*See:

List of movable Western Christian observances {{Use mdy dates, date=July 2017 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 gen ...

*See: List of movable Eastern Christian observances

First Wednesday: April 1

* National Day of Hope (

)

First Saturday: April 4

Ulcinj Municipality Day Ulcinj Municipality ( Montenegrin: Opština Ulcinj / Општина Улцињ; Albanian: Komuna e Ulqinit) is the southernmost municipality of Montenegro, bordered by Albania to the east, Bar Municipality to the north and Adriatic Sea to the so ...

(

Ulcinj Ulcinj ( cyrl, Улцињ, ; ) is a town on the southern coast of Montenegro and the capital of Ulcinj Municipality. It has an urban population of 10,707 (2011), the majority being Albanians. As one of the oldest settlements in the Adriatic coast ...

Montenegro ) , image_map = Europe-Montenegro.svg , map_caption = , image_map2 = , capital = Podgorica , coordinates = , largest_city = capital , official_languages = M ...

)

First Sunday: April 5

Daylight saving time Daylight saving time (DST), also referred to as daylight savings time or simply daylight time (United States, Canada, and Australia), and summer time (United Kingdom, European Union, and others), is the practice of advancing clocks (typicall ...

ends (

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

) *

Geologists Day Geologists Day is an official holiday for geologists, geophysicists and geochemists in Russia and other former states of the Soviet Union, Established in 1966, the holiday is traditionally celebrated on the first Sunday of April. Geologists Day ...

(former

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...

countries) *

Kanamara Matsuri The Shinto is an annual Japanese festival held each spring at the in Kawasaki, Japan. The exact dates vary: the main festivities fall on the first Sunday in April. The phallus, as the central theme of the event, is reflected in illustrations, c ...

( 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 years ...

(

)

First full week: April 5–11

National Library Week First sponsored in 1958, National Library Week (NLW) is a national observance sponsored by the American Library Association (ALA) and Library, libraries across the United States each April, typically the second full week. It promotes library use a ...

(

) ** National Library Workers Day (

) (Tuesday of National Library week, April 4) ** National Bookmobile Day (Wednesday of National Library week, April 5) * National Public Health Week (

) * National Public Safety Telecommunicators Week (

)

= Second Wednesday: April 8

= *

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 is ...

= Second Thursday: April 9

= *

National Former Prisoner of War Recognition Day In the United States, National POW/MIA Recognition Day is observed on the third Friday in September. It honors those who were prisoners of war (POWs) and those who are still missing in action (MIA). It is most associated with those who were POWs d ...

(

)

= Second Friday of April: April 10

= * 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 its north, Ivory Coast to its east, and the Atlantic Ocean ...

) * Air Force Day (

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

) * Kamakura Matsuri at Tsurugaoka Hachiman (

Kamakura is a city in Kanagawa Prefecture, Japan. Kamakura has an estimated population of 172,929 (1 September 2020) and a population density of 4,359 persons per km² over the total area of . Kamakura was designated as a city on 3 November 1939. Kamak ...

, Japan), lasts until third Sunday.

Second Sunday: April 12

Children's Day Children's Day is a commemorative date celebrated annually in honor 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 , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

)

Week of April 14: April 12–18

* Pan-American Week (

)

Third Wednesday: April 15

* Administrative Professionals' Day (

)

Third Thursday: April 16

National High Five Day High five is a friendly gesture in which one individual slaps another's hand. High five (and variants such as Hi5, Hi-5, and Hi-Five) may also refer to: Music * Hi-5 (Australian group), an Australian children's musical group * Hi-5 (Greek band), ...

(

)

Third Saturday: April 18

Record Store Day Record Store Day is an annual event inaugurated in 2007 and held on one Saturday (typically the third) every April and every Black Friday in November to "celebrate the culture of the independently owned record store". The day brings together fa ...

( International observance)

Last full week of April: April 19–25

* Administrative Professionals Week (

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

) * World Immunization Week

Week of April 23: April 19–25

* Canada Book Week (

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

)

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. ...
: April 19–25

National Dark-Sky Week International Dark Sky Week (formerly the National Dark Sky Week) is held during the week of the new moon in April, when people worldwide may turn off their lights to observe the beauty of the night sky without light pollution. This event was f ...

(

)

Third Monday: April 20

* Patriots' Day (

Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...

Maine Maine () is a state in the New England and Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and north ...

) * Queen's Official Birthday ( Saint Helena, Ascension and Tristan da Cunha) * Sechseläuten (

Zürich Zürich () is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2020, the municipality has 43 ...

Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...

)

= Wednesday of last full week of April: April 22

= * Administrative Professionals' Day (

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

)

First Thursday after April 18: April 23

First Day of Summer The first day of summer ( ) is an annual public holiday in Iceland that is celebrated on the first Thursday after 18 April (some time between 19-25 April). It is a celebration of the start of the first summer month () of the old Icelandic cale ...

(

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its s ...

)

= Fourth Thursday: April 23

= *

Take Our Daughters And Sons To Work Day Take Our Daughters And Sons To Work Day, also 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 Foundation, a 501( ...

(

)

= Last Friday: April 24

= * Arbor Day (

) *

Día de la Chupina The ''Día de la Chupina'' (Spanish, literally Hooky Day) is a popular event and self-styled " holiday" created by secondary school students in the city of Rosario, Argentina Argentina (), officially the Argentine Republic ( es, link=no, ...

(

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

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

)

Last Friday in April to first Sunday in May: April 24-May 3

* Arbour Week in

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

= Last Saturday: April 25

= *

(

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

) * 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 T'ai chi ch'uan and Qigong in nearly eighty countries since 199 ...

= Last Sunday: April 26

= * Flag Day (

Åland Åland ( fi, Ahvenanmaa: ; ; ) is an Federacy, autonomous and Demilitarized zone, demilitarised region of Finland since 1920 by a decision of the League of Nations. It is the smallest region of Finland by area and population, with a size of 1 ...

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

) * Turkmen Racing Horse Festival (

Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the sout ...

)

= April 27 (moves to April 26 if April 27 is on a Sunday): April 27

= *

Koningsdag ''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 holi ...

(

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

)

= Last Monday: April 27

= * Confederate Memorial Day (

Georgia (U.S. state) Georgia is a state in the Southeastern United States, Southeastern region of the United States, bordered to the north by Tennessee and North Carolina; to the northeast by South Carolina; to the southeast by the Atlantic Ocean; to the south by ...

, and

)

= Last Wednesday: April 29

= * International Noise Awareness Day

Fixed observances

April 1 Events Pre-1600 * 33 – According to one historian's account, Jesus Christ's Last Supper is held. * 527 – Byzantine Emperor Justin I names his nephew Justinian I as co-ruler and successor to the throne. *1081 – Alexios I Kom ...

** April Fools' Day ** Arbor Day (

Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and ...

) **

Civil Service Day Public holidays in Thailand are regulated by the government, and most are observed by both the public and private sectors. There are usually nineteen public holidays in a year, but more may be declared by the cabinet. Other observances, both offic ...

(

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

) ** Cyprus National Day (

Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is geo ...

) **

Edible Book Day The International Edible Book Festival is an list of minor secular observances#April, annual event usually held on or around April 1, which is also known as Edible Book Day. The global event has been celebrated since 2000 in various parts of the w ...

Fossil Fools Day Fossil Fools Day is an environmental demonstration day. It occurs on April 1. The name is a play on the term fossil fuels and April Fools' Day. Fossil Fools Day began in 2004 with coordinated actions across the United States and Canada. Subs ...

Kha b-Nisan Kha may refer to: * Kha (Bengali), a letter * Kha (Cyrillic), a letter * Kha (Indic), a consonant * Ḫāʾ (sometimes khā), Arabic letter خ * Kha, an ancient Egyptian architect and overseer, in Theban Tomb 8, TT8 * Kitty Hawk Aircargo ''For th ...

( Assyrian people) ** National Civil Service Day (

) **

Odisha Day Odisha Day, also Utkala Dibasa, is celebrated on 1 April in the Indian state of Odisha in memory of the formation of the state as a separate state out of Bihar and Orissa Province with addition of Koraput and Ganjam from the Madras Presidency on ...

(

Odisha Odisha (English: , ), formerly Orissa ( the official name until 2011), is an Indian state located in Eastern India. It is the 8th largest state by area, and the 11th largest by population. The state has the third largest population of ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

) **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 Be ...

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. Jo ...

International Children's Book Day International Children's Book Day (ICBD) is a yearly event sponsored by the International Board on Books for Young People (IBBY), an international non-profit organization. Founded in 1967, the day is observed on or around Hans Christian Andersen's ...

( International observance) ** Malvinas Day (

) ** National Peanut Butter and Jelly Day (

) **

Thai Heritage Conservation Day Public holidays in Thailand are regulated by the government, and most are observed by both the public and private sectors. There are usually nineteen public holidays in a year, but more may be declared by the cabinet. Other observances, both offi ...

(

) **

Unity of Peoples of Russia and Belarus Day National holidays in Belarus are classified into state holidays and other holidays and commemorative days, including religious holidays. Nine of them are non-working days. Public holidays (non-working days) Other holidays State Comme ...

(

Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by R ...

) **

World Autism Awareness Day World Autism Awareness Day is an internationally recognized day annually on April 2nd, encouraging Member States of the United Nations to take measures to raise awareness about autistic individuals throughout the world. It was designated by the ...

( International observance) * April 3 *

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 – ...

(

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

) **

Independence Day (Senegal) This is a list of public holidays in Senegal. Public holidays Variable dates *2020 **Easter Monday – April 13 **Korité (Breaking of the Ramadan fast) – May 24 **Whit Monday – June 1 **Tabaski (Feast of the Sacrifice) – starts July 31 ...

** 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 Angolan culture Society of Angola Holidays A holi ...

April 5 Events Pre-1600 * 823 – Lothair I is crowned King of Italy by Pope Paschal I. * 919 – The second Fatimid invasion of Egypt begins, when the Fatimid heir-apparent, al-Qa'im bi-Amr Allah, sets out from Raqqada at the head of his a ...

(

Palestinian territories The Palestinian territories are the two regions of the former British Mandate for Palestine that have been militarily occupied by Israel since the Six-Day War of 1967, namely: the West Bank (including East Jerusalem) and the Gaza Strip. The I ...

) ** National Caramel Day (United States) ** Sikmogil (South Korea) * April 6 ** Chakri Day (Thailand) **

National Beer Day (United Kingdom) Beer Day Britain is an annual event celebrating beer in the United Kingdom. The date has been celebrated annually on 15 June since 2015. It is supported by the British Beer and Pub Association, the Society of Independent Brewers (SIBA), and the ...

New Beer's Eve 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. This led to the Ei ...

(United States) ** Tartan Day (United States & Canada) * April 7 ** Flag Day (Slovenia) **

Genocide Memorial Day (Rwanda) This is a list of public holidays in Rwanda. Rwanda observes fourteen regular public holidays. Additionally, the week following Genocide Memorial Day on 7 April is designated an official week of mourning. The last Saturday of each month is ''umuga ...

, and its related observance: ***

International Day of Reflection on the 1994 Rwanda Genocide The International Day of Reflection on the 1994 Rwandan Genocide was recognized as an international observance by the United Nations on April 7, 2004. Commemorative events for the Rwandan genocide were held in several major cities including Kigali ...

(

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 ...

) ** 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. This led to the Ei ...

** No Housework Day **

Sheikh Abeid Amani Karume Day Public holidays in Tanzania are in accordance with the Public Holidays Ordinance (Amended) Act, 1966 and are observed throughout the nation. Background The Public Holidays Ordinance (Amended) Act, 1966 lists twelve public holidays in its schedule ...

(Tanzania) ** Women's Day (Mozambique) ** World Health Day ( International observance) *

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 – Ro ...

** Buddha's Birthday (Japan only, other countries follow different calendars) ** Feast of the First Day of the Writing of the Book of the Law ( Thelema) **

International Romani Day The International Romani Day (April 8) 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 Congress of ...

( International observance) ** Trading Cards for Grown-ups Day *

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, s ...

** Anniversary of the German Invasion of Denmark (Denmark) **

Baghdad Liberation Day This is a list of public holidays in Iraq. Other important dates These are working days at the KRG Council of Ministers, and businesses are open. Special events take place around the Iraqi Kurdistan Region to mark these dates. *10 February: Kur ...

( Iraqi Kurdistan) **

Constitution Day (Kosovo) This is a list of public holidays in Kosovo. Annotations See also * Public holidays in Yugoslavia References {{Europe topic, Public holidays in Kosovo Kosovo ( sq, Kosova or ; sr-Cyrl, Косово ), officially the Repub ...

Day of National Unity (Georgia) ReferencesNational holidays of Georgia- Article 30 {{Georgia (country) topics Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast Uni ...

** Day of the Finnish Language (Finland) **

Day of Valor The Day of Valor, officially known as , is a national observance in the Philippines which commemorates the fall of Bataan to Japanese troops during World War II. It falls every April 9, although in 2009, its celebration was moved to April 6 to ...

or ''Araw ng Kagitingan'' (Philippines) **

Feast of the Second Day of the Writing of the Book of the Law Thelema () is a Western esoteric and occult social or spiritual philosophy and new religious movement founded in the early 1900s by Aleister Crowley (1875–1947), an English writer, mystic, occultist, and ceremonial magician. The word '' ...

( Thelema) ** International Banshtai Tsai Day **

Martyr's Day (Tunisia) Martyrs' Day is an annual day observed by nations to salute the martyrdom of soldiers who lost their lives defending the sovereignty of the nation. The actual date may vary from one country to another. Here is a list of countries and Martyrs' Days. ...

(United States) ** Remembrance for Haakon Sigurdsson (

The Troth The Troth, formerly the Ring of Troth, is an United States, American-based international Germanic Neopaganism, heathen organization.Vimy Ridge Day Vimy Ridge Day is a day to commemorate the deaths and casualties of members of the Canadian Corps in the Battle of Vimy Ridge, which took place during the First World War. The holiday has been observed annually on 9 April since 2003. It is a no ...

(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). * 1407 ...

** Day of the Builder (Azerbaijan) **

Feast of the Third Day of the Writing of the Book of the Law Thelema () is a Western esoteric and occult social or spiritual philosophy and new religious movement founded in the early 1900s by Aleister Crowley (1875–1947), an English writer, mystic, occultist, and ceremonial magician. The word '' ...

( Thelema) **

Siblings Day A sibling is a relative that shares at least one parent with the subject. A male sibling is a brother and a female sibling is a sister. A person with no siblings is an only child. While some circumstances can cause siblings to be raised separat ...

( International observance) * April 11 ** Juan Santamaría Day, anniversary of his death in the

Second Battle of Rivas The Second Battle of Rivas occurred on 11 April 1856 between Costa Rican militia under General Mora and the Nicaraguan forces of American mercenary William Walker. The lesser known First Battle of Rivas took place on the 29 June 1855 between ...

. (Costa Rica) **

International Louie Louie Day "Louie Louie" is a rhythm and blues song written and composed by American 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 a standard in pop and r ...

** National Cheese Fondue Day (United States) **

World Parkinson's Day James Parkinson (11 April 175521 December 1824) was an English surgeon, apothecary, geologist, palaeontologist and political activist. He is best known for his 1817 work ''An Essay on the Shaking Palsy'', in which he was the first to describe ...

* April 12 **

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

Cosmonautics Day Cosmonautics Day (russian: День Космона́втики, ''Den Kosmonavtiki'') is an anniversary celebrated in Russia and some other former Soviet Union countries on 12 April.

(Russia) ***

International Day of Human Space Flight The International Day of Human Space Flight is the annual celebration, held on 12 April, of the anniversary of the first human space flight by Yuri Gagarin (USSR). It was proclaimed at the 65th session of the United Nations General Assembly on 7 A ...

***

Yuri's Night Yuri's Night is an international celebration held every April 12 to commemorate milestones in space exploration. It is named for the first human to launch into space, Yuri Gagarin, who flew the Vostok 1 spaceship on April 12, 1961. In 2011, Yur ...

( International observance) **

Halifax Day The following are minor or locally celebrated holidays related to the American Revolution. A Great Jubilee Day A Great Jubilee Day, first organized May 26, 1783 in North Stratford, now Trumbull, Connecticut, celebrated end of major fighting in th ...

(

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...

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

National Redemption Day The following are public holidays in Liberia. Public holidays Former public holidays References {{DEFAULTSORT:Public Holidays In Liberia Holidays Liberian culture Liberia Liberia (), officially the Republic of Liberia, is a co ...

(Liberia) ** Walk on Your Wild Side Day *

April 13 Events Pre-1600 *1111 – Henry V is crowned Holy Roman Emperor. * 1204 – Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire. 1601–1900 *1612 – In one of the epic samurai ...

Jefferson's Birthday Jefferson's Birthday officially honors the birth of the third U.S. president, Thomas Jefferson Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of ...

(United States) ** Katyn Memorial Day (

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...

) **

Teacher's Day Teachers' Day is a special day for the appreciation of teachers, and 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 ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

) **First day of

Thingyan Thingyan (, ; Arakanese: ; from Sanskrit '' saṁkrānti,'' which means "transit f the Sun from Pisces to Aries) is the Burmese New Year Festival that usually occurs in middle of April. Thingyan is the first ever water festival celebrated in ...

(

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

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

Slovakia Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), 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 s ...

) *

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 Otho ...

** ʔabusibaree (

Okinawa Islands The Okinawa Islands ( or ) 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 Kagoshi ...

, Japan) **

Ambedkar Jayanti Ambedkar Jayanti or Bhim Jayanti is an annual festival observed on 14 April to commemorate the memory of B. R. Ambedkar, Indian politician and civil rights activist. It marks Dr. Babasaheb Ambedkar's birthday who was born on 14 April 1891. Sin ...

(India) ** Black Day (South Korea) **

Commemoration of Anfal Genocide Against the Kurds This is a list of public holidays in Iraq. Other important dates These are working days at the KRG Council of Ministers, and businesses are open. Special events take place around the Iraqi Kurdistan Region to mark these dates. *10 February: Kur ...

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

Yaroslavl Oblast Yaroslavl Oblast (russian: Яросла́вская о́бласть, ''Yaroslavskaya oblast'') is a federal subject of Russia (an oblast), which is located in the Central Federal District, surrounded by Tver, Moscow, Ivanovo, Vladimir, Kostroma ...

, Russia) **

Day of the Georgian language On 14 April 1978, demonstrations in Tbilisi, capital of the Georgian SSR, took place in response to an attempt by the Government of the Soviet Union, Soviet government to change the constitutional status of languages in Georgia. After a new 1977 So ...

(

Georgia (country) Georgia (, ; ) is a transcontinental country at the intersection of Eastern Europe and Western Asia. It is part of the Caucasus region, bounded by the Black Sea to the west, by Russia to the north and northeast, by Turkey to the southwest ...

) ** Season of Emancipation (April 14 to August 23) (Barbados) **

N'Ko Alphabet Day N'Ko () is a script devised by Solomana Kante in 1949, as a modern writing system for the Mandé languages of West Africa. The term ''N'Ko'', which means ''I say'' in all Mandé languages, is also used for the Mandé literary standard written i ...

( Mande speakers) ** Pohela Boishakh (Bangladesh) **

Pana Sankranti Pana Sankranti, ( or, ପଣା ସଙ୍କ୍ରାନ୍ତି) also known as Maha Bishuba Sankranti ( or, ମହା ବିଷୁବ ସଙ୍କ୍ରାନ୍ତି), is the traditional new year day festival of Odia people in Odisha, India. ...

(

, India) ** Puthandu ( Tamils) (India, Malaysia, Singapore, Sri Lanka) **Second day of Songkran (Thailand) (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 file:高山市役所.JPG, Takayama City Hall is a Cities of Japan, 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 ...

, Japan) ** Vaisakh (

Punjab (region) Punjab (; Punjabi: پنجاب ; ਪੰਜਾਬ ; ; also romanised as ''Panjāb'' or ''Panj-Āb'') is a geopolitical, cultural, and historical region in South Asia, specifically in the northern part of the Indian subcontinent, comprising ...

), (India and Pakistan) ** Youth Day (Angola) * April 15 ** Day of the Sun (North Korea). ** Hillsborough Disaster Memorial (

Liverpool Liverpool is a city and metropolitan borough in Merseyside, England. With a population of in 2019, it is the 10th largest English district by population and its metropolitan area is the fifth largest in the United Kingdom, with a popul ...

, England) **

Jackie Robinson Day Jackie Robinson Day is a traditional event which occurs annually on April 15 in Major League Baseball (MLB), commemorating and honoring the day Jackie Robinson made his major league debut. Celebrated at MLB ballparks, on that one day, all player ...

(United States) ** Pohela Boishakh (

West Bengal West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the fourt ...

, India) (Note: celebrated on

in Bangladesh) **Last day of Songkran (Thailand) (Thailand) **

Tax Day In the United States, Tax Day is the day on which individual income tax returns are due to be submitted to the federal government. Since 1955, Tax Day has typically fallen on or just after April 15. Tax Day was first introduced in 1913, when th ...

, the official deadline for filing an individual

tax return A tax return is the completion of documentation that calculates an entity or individual's income earned and the amount of taxes to be paid to the government or government organizations or, potentially, back to the taxpayer. Taxation is one of ...

(or requesting an extension). (United States, Philippines) **

Universal Day of Culture The Universal Day of Culture under the Banner of Peace, known also as the World Day of Culture, is an observance held annually on April 15 in many countries around the World to promote the protection of culture, the Roerich Pact and the Banner of ...

World Art Day World Art Day is an international celebration of the fine arts which was declared by the International Association of Art (IAA) in order to promote awareness of creative activity worldwide. Establishment A proposal was put forward at the 17th Gene ...

* April 16 **

Birthday of José de Diego Puerto Rico celebrates all official U.S. holidays, and a number of other official holidays established by the Commonwealth government. Additionally, many municipalities celebrate their own Patron Saint Festivals (''fiestas patronales'' in Span ...

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

Emancipation Day Emancipation Day is observed in many former European colonies in the Caribbean and areas of the United States on various dates to commemorate the emancipation of slaves of African descent. On August 1, 1985, Trinidad and Tobago became the fir ...

(

Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...

, United States) **

Foursquare Day Foursquare City Guide, commonly known as Foursquare, is a local search-and-discovery mobile app developed by Foursquare (company), Foursquare Labs Inc. The app provides personalized recommendations of places to go near a user's current location ...

( International observance) **

Memorial Day for the Victims of the Holocaust A number of public holidays and special events take place each year in Hungary. Fixed public holidays Article J of the Constitution of Hungary on national holidays (1) The national holidays of Hungary shall be: a) the 15th day of March, in mem ...

(Hungary) ** National Healthcare Decisions Day (United States) ** Remembrance of Chemical Attack on Balisan and Sheikh Wasan ( Iraqi Kurdistan) **

World Voice Day World Voice Day (WVD) is a worldwide annual event that takes place on April 16 devoted to the celebration of the phenomenon of voice. /sup>The aim is to demonstrate the enormous importance of the voice in the daily lives of all people. Voice is a ...

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 Hasan ...

** Blah Blah Blah Day **

Evacuation Day (Syria) Evacuation Day ( ar, عيد الجلاء, ʿīd al-jalāʾ, also known as Jalaa Day or Clearance Day), is Syria's national day commemorating the evacuation of the last French soldier at the end of the French mandate of Syria on 17 April 1946 aft ...

FAO Day This is a list of public holidays in Iraq. Other important dates These are working days at the KRG Council of Ministers, and businesses are open. Special events take place around the Iraqi Kurdistan Region to mark these dates. *10 February: Kur ...

(Iraq) **

Flag Day (American Samoa) The flag of American Samoa is a flag consisting of a red-edged white triangle pointing towards the hoist charged with a bald eagle clutching a war club and fly-whisk, with dark blue upper and lower triangles. Adopted in April 1960 to replace the " ...

Malbec World Day Malbec World Day is an annual observance celebrated on April 17, to commemorate the day on which President Domingo Faustino Sarmiento of Argentina officially made it his mission to transform Argentina's wine industry. On April 17, 1853, Sarmiento ta ...

** National Cheeseball Day (United States) ** National Espresso Day (Italy) ** Women's Day (Gabon) **

World Hemophilia Day The World Federation of Hemophilia (WFH) is an international non-profit organization dedicated to improving the lives of people with hemophilia (also spelled haemophilia) and other genetic bleeding disorders. It educates people with bleeding di ...

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 betw ...

Anniversary of the Victory over the Teutonic Knights in the Battle of the Ice, 1242 The Days of Military Honour (russian: Дни воинской славы, ''dni voinskoy slavy'') are special memorable dates in the Russian Armed Forces dedicated to the most outstanding victories won by Russia. Some of these dates are state holi ...

(Russia) **

Army Day (Iran) Many nations around the world observe some kind of Armed Forces Day to honor their military forces. This day is not to be confused with Veterans Day or Memorial Day. Africa Egypt In Egypt, Armed Forces Day is celebrated on 6 October, ...

** Coma Patients' Day (Poland) ** Friend's Day (Brazil) **

Independence Day (Zimbabwe) The following is a list of holidays in Zimbabwe: Public holidays are as detailed in thPublic Holidays and Prohibition of Business Act(Chapter 10:21), its various amendments and General Notices See also Public Holidays 2017Public Holidays 2016 ...

International Day For Monuments and Sites The International Day for Monuments and Sites also known as World Heritage Day is an international observance held on 18 April each year around the world with different types of activities, including visits to monuments and heritage sites, con ...

Invention Day Japanese patent law is based on the first-to-file principle and is mainly given force by the of Japan. Article 2 defines an invention as "the highly advanced creation of technical ideas utilizing the law of nature". English translation The d ...

(Japan) ** Pet Owner's Independence Day *

April 19 Events Pre-1600 *AD 65 – The freedman Milichus betrays Piso's plot to kill the Emperor Nero and all the conspirators are arrested. * 531 – Battle of Callinicum: A Byzantine army under Belisarius is defeated by the Persians at ...

** Army Day (Brazil) ** Beginning of the Independence Movement (Venezuela) **

Bicycle Day Bicycle Day may refer to: * World Bicycle Day, declared by United Nations General Assembly in 2018, to be celebrated on 3rd June, globally. * History of lysergic acid diethylamide#"Bicycle Day", "Bicycle Day", the first recorded LSD "trip" by Albe ...

Dutch-American Friendship Day Dutch Americans ( nl, Nederlandse Amerikanen) are Americans of Dutch descent whose ancestors came from the Netherlands in the recent or distant past. Dutch settlement in the Americas started in 1613 with New Amsterdam, which was exchanged with ...

(United States) **

Holocaust Remembrance Day Yom HaZikaron laShoah ve-laG'vurah ( he, יום הזיכרון לשואה ולגבורה, , lit=Holocaust and Heroism Remembrance Day), known colloquially in Israel and abroad as Yom HaShoah (יום השואה) and in English as Holocaust Reme ...

(Poland) ** Indian Day (Brazil) **

King Mswati III's birthday This is a list of holidays in Eswatini. If a holiday falls on a Sunday, it may be celebrated on the following Monday. References Swazi culture Eswatini Eswatini Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and f ...

(Eswatini) **

Landing of the 33 Patriots Day 19 April is the anniversary of the Landing of the 33 Patriots in Uruguay, also known as the Thirty-Three Orientals, called 'Orientals' because Uruguay was known as the Banda Oriental, or the "Eastern Bank" of the Río de la Plata, the western shor ...

(Uruguay) ** National Garlic Day (United States) ** National Rice Ball Day (United States) ** Primrose Day (United Kingdom) * April 20 **

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

(International) **

UN Chinese Language Day __NOTOC__ UN Chinese Language Day () is observed annually on April 20. The event was established by the UN Department of Public Information in 2010, seeking "to celebrate multilingualism and cultural diversity as well as to promote equal use of a ...

(

) *

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 murdered ...

** A&M Day (

Texas A&M University Texas A&M University (Texas A&M, A&M, or TAMU) is a public, land-grant, research university in College Station, Texas. It was founded in 1876 and became the flagship institution of the Texas A&M University System in 1948. As of late 2021, T ...

) **

(India) ** Day of Local Self-Government (Russia) **

Grounation Day Grounation Day (April 21) is an important Rastafari holy day, second only to Coronation Day (November 2). It is celebrated in honour of Haile Selassie's 1966 visit to Jamaica. Visit of Selassie to Jamaica Haile Selassie had already met with seve ...

( Rastafari movement) ** 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 bers ...

(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 ...

(

) ** Queen's Official Birthday (

Falkland Islands The Falkland Islands (; es, Islas Malvinas, link=no ) 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 about from Cape Dubouzet ...

) ** Tiradentes' Day (Brazil) **

Vietnam Book Day Public holidays Public holidays in Vietnam are days when workers get the day off work. Prior to 2007, Vietnamese workers observed 8 days of public holiday a year, among the lowest in the region. On 28 March 2007 the government added the traditio ...

(Vietnam) *

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

**Discovery Day (Brazil) **Earth Day ( International observance) and its related observance: ***International Mother Earth Day **Holocaust Memorial Days, Holocaust Remembrance Day (Serbia) **List of food days#April, National Jelly Bean Day (United States) *April 23 **Castile and León Day (Castile and León, Spain) **German Apples Day, German Beer Day (Germany) **Conch Republic, Independence Day (Conch Republic, Key West, Florida) **International Pixel-Stained Technopeasant Day **Khongjom Day (Manipur, India) **National Sovereignty and Children's Day (Turkey and Northern Cyprus) **Navy Day (China) **St George's Day (England) and its related observances: ***Canada Book Day (Canada) ***St George's Day#Catalonia, La Diada de Sant Jordi (Catalonia, Spain) ***World Book Day **UN English Language Day (

) *April 24 **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 Day#Bangladesh, Labour Safety Day (Bangladesh) **National Panchayati Raj Day (India) **List of food days#April, National Pigs in a Blanket Day (United States) **Republic Day (The Gambia) **St Mark's Eve (Western Christianity) **World Day for Laboratory Animals *April 25 **Anniversary of the First Cabinet of Kurdish Government ( Iraqi Kurdistan) **Anzac Day (Australia, New Zealand) **Arbor Day (Germany) **DNA Day **Feast of Saint Mark (Western Christianity) **Flag Day (Faroe Islands) **Public holidays in Eswatini, Flag Day (Eswatini) **Freedom Day (Portugal) **Liberation Day (Italy) **Rogation Day, Major Rogation (Western Christianity) **Military Foundation Day (North Korea) **List of food days#April, National Zucchini Bread Day (United States) **Parental Alienation Awareness Day **Red Hat Society Day **Sinai Liberation Day (Egypt) **World Malaria Day *April 26 **Chernobyl disaster related observances: ***International Duties Memorial Day, Memorial Day of Radiation Accidents and Catastrophes (Russia) ***Day of Remembrance of the Chernobyl tragedy (Belarus) ** Confederate Memorial Day (

, United States) **Hug A Friend Day **Thomas Roy#List of days, Hug an Australian Day **Lesbian Visibility Day **List of food days#April, National Pretzel Day (United States) **Old Permic alphabet, Old Permic Alphabet Day **Union Day (Tanzania) **World Intellectual Property Day *April 27 **Public holidays in Russia, Day of Russian Parliamentarism (Russia) **Day of the Uprising Against the Occupying Forces (Slovenia) ** Flag Day (Moldova) **Freedom Day (South Africa) ***UnFreedom Day **Independence Day (Sierra Leone) **Public holidays in Togo, Independence Day (Togo) **National Day (Mayotte) **National Day (Sierra Leone) **List of food days#April, National Prime Rib Day (United States) **Flag flying days in Finland, National Veterans' Day (Finland) *April 28 **Lawyers' Day (Orissa, India) **Mujahideen Victory Day (Afghanistan) **National Day (Sardinia, Italy) **National Heroes Day (Barbados), National Heroes Day (Barbados) **Restoration of Sovereignty Day (Japan) **Workers' Memorial Day, Workers' Memorial Day and World Day for Safety and Health at Work (International observances, international) ***National Day of Mourning (Canada), National Day of Mourning (Canada) *April 29 **Day of Remembrance for all Victims of Chemical Warfare (

) **International Dance Day (UNESCO) **Public holidays in Denmark#Other special days, Princess Bedike's Birthday (Denmark) **List of food days#April, National Shrimp Scampi Day (United States) **Shōwa Day, traditionally the start of the Golden Week (Japan), Golden Week holiday period, which is April 29 and May 3–5. (Japan) *April 30 **Armed Forces Day (

) **Flag flying days in Sweden, Birthday of the King (Sweden) **Battle of Camarón, Camarón Day (French Foreign Legion) **

(Mexico) **Public holidays in Thailand, Consumer Protection Day (Thailand) **Honesty Day (United States) **International Jazz Day (UNESCO) **Martyrs' Day#Pakistan, Martyr's Day (Pakistan) **May Eve, the eve of the first day of summer in the Northern hemisphere ''(see May 1)'': ***Beltane begins at sunset in the Northern hemisphere, Samhain begins at sunset in the Southern hemisphere. (Neo-Druidism, Neo-Druidic Wheel of the Year) ***Carodejnice (Czech Republic and Slovakia) ***Walpurgis Night (Central and Northern Europe) **Persian Gulf naming dispute#National Persian Gulf Day, National Persian Gulf Day (Iran) **Reunification Day (Vietnam) **Public holidays in Russia#Popular holidays which are not public holidays, Russian State Fire Service Day (Russia) **Tax return (Canada), Tax Day (Canada) **Teachers' Day (Paraguay)

References

External links

National Arbor Day Foundation
{{Authority control April, Months, *04

History

April symbols

April observances

Month-long observances

United States

United States Food months

Non-Gregorian observances: 2021

Movable observances, 2021 dates

First Wednesday: April 1

First Saturday: April 4

First Sunday: April 5

First full week: April 5–11

= Second Wednesday: April 8

= Second Thursday: April 9

= Second Friday of April: April 10

Second Sunday: April 12

Week of April 14: April 12–18

Third Wednesday: April 15

Third Thursday: April 16

Third Saturday: April 18

Last full week of April: April 19–25

Week of April 23: April 19–25

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. ...: April 19–25

Third Monday: April 20

= Wednesday of last full week of April: April 22

First Thursday after April 18: April 23

= Fourth Thursday: April 23

= Last Friday: April 24

Last Friday in April to first Sunday in May: April 24-May 3

= Last Saturday: April 25

= Last Sunday: April 26

= April 27 (moves to April 26 if April 27 is on a Sunday): April 27

= Last Monday: April 27

= Last Wednesday: April 29

Fixed observances

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. ...
: April 19–25