Wikipedia:Selected anniversaries/April
Selected anniversaries / On this day archive
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| An archive of historical anniversaries that appeared on the Main Page 2026 day arrangement | ||||||
April 1: April Fools' Day; Iranian Islamic Republic Day (1979)
The first Apple, Inc. logo
- 1346 – Hundred Years' War: John, Duke of Normandy, laid siege to the town of Aiguillon.
- 1922 – Under the South Seas Mandate, Japan set up a government in Koror, precipitating large-scale Japanese settlement in Palau.
- 1976 – Steve Jobs and Steve Wozniak founded Apple Computer, Inc. (first logo pictured).
- 2001 – An American Lockheed EP-3 and a Chinese Shenyang J-8 collided in mid-air off Hainan, resulting in an international dispute between the two countries.
- Ferruccio Busoni (b. 1866)
- James Burrill Angell (d. 1916)
- Cosima Wagner (d. 1930)
- Cynthia Lennon (d. 2015)
April 2: World Autism Awareness Day; Malvinas Day in Argentina (1982); First Day of Passover (Judaism, 2026)
W. S. Gilbert
- 1513 – Spanish conquistador Juan Ponce de León sighted land in North America, naming the area La Florida.
- 1871 – Creatures of Impulse, by W. S. Gilbert (pictured), premiered at the Court Theatre in London.
- 1911 – The Australian Bureau of Statistics conducted the first national census of the country.
- 2015 – Gunmen attacked Garissa University College in Kenya, killing 148 people and wounding 79 others.
- Jack Brabham (b. 1926)
- Emmylou Harris (b. 1947)
- Caroline Dean (b. 1957)
- Charles Daudelin (d. 2001)
Replica of Luna 10
- 1559 – Henry II of France and Philip II of Spain signed the second treaty of Cateau-Cambrésis, ending the Italian War of 1551–1559.
- 1888 – Emma Elizabeth Smith was killed in the first of eleven unsolved murders of women that took place in or near the impoverished Whitechapel district in the East End of London.
- 1966 – Luna 10 (replica pictured) entered orbit around the Moon, becoming the first space probe to orbit an astronomical body other than Earth or the Sun.
- 2018 – A woman opened fire at YouTube headquarters in San Bruno, California, injuring three people before killing herself.
- Shivaji (d. 1680)
- Mary Harrison McKee (b. 1858)
- Gus Grissom (b. 1926)
- Yuliya Yefimova (b. 1992)
Flag of Hong Kong
- 1268 – The Byzantine Empire and the Republic of Venice signed a five-year peace treaty.
- 1581 – Queen Elizabeth I knighted Francis Drake for completing a circumnavigation of the world.
- 1990 – The current flag of Hong Kong (pictured) was adopted for post-colonial use during the Third Session of the Seventh National People's Congress.
- 2011 – Georgian Airways Flight 834 crashed at N'djili Airport in Kinshasa, killing 32 people and leaving one survivor.
- Elena Glinskaya (d. 1538)
- Philippa Fawcett (b. 1868)
- Addo Bonetti (b. 1926)
April 5: Easter in Western Christianity (2026); Qingming Festival in Greater China (2026); Feast day of Saint Vincent Ferrer (Catholicism)
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First edition dust jacket of Carrie
- 1710 – The Statute of Anne, the first legislation in Great Britain providing for copyright regulated by the government and courts, received royal assent and entered into force five days later.
- 1974 – Carrie (pictured), the first novel by American author Stephen King, was published.
- 1983 – In China, the People's Armed Police, primarily responsible for internal security, was founded.
- 2010 – Two bombings in Pakistan killed up to 50 people and injured around 100 others.
- Benjamin Harrison V (b. 1726)
- Princess Victoria of Hesse and by Rhine (b. 1863)
- Fernando Morientes (b. 1976)
- Rashmika Mandanna (b. 1996)
April 6: Śmigus-dyngus in Poland (2026); Tartan Day
Varney Air Lines first flight covers
- 1652 – Dutch sailor Jan van Riebeeck landed at Table Bay in southern Africa, establishing a settlement that later became known as Cape Town.
- 1776 – American Revolutionary War: Ships of the Continental Navy unsuccessfully attempted to capture HMS Glasgow near Block Island.
- 1926 – Varney Air Lines made its first commercial flight (flight covers pictured), later forming the basis of United Airlines.
- 2005 – Kurdish leader Jalal Talabani was elected by the National Assembly as the first non-Arab president of Iraq.
- 2011 – Mexican drug war: Authorities discovered 59 bodies in clandestine mass graves linked to earlier bus hijackings in San Fernando, Tamaulipas.
- Leonora Baroni (d. 1670)
- Gustave Moreau (b. 1826)
- Bert Blyleven (b. 1951)
- Teigan Van Roosmalen (b. 1991)
April 7: National Beer Day in the United States
Artist's conception of 2001 Mars Odyssey
- 1831 – Pedro II became emperor of the Empire of Brazil.
- 1926 – Italian dictator Benito Mussolini survived an assassination attempt by Irishwoman Violet Gibson.
- 1994 – A FedEx employee tried to hijack Federal Express Flight 705 in a failed suicide attempt.
- 2001 – NASA's 2001 Mars Odyssey (artist's conception pictured), the longest-surviving continually active spacecraft in orbit around a planet other than Earth, launched from Cape Canaveral.
- Baha al-Din Qaraqush (d. 1201)
- Flora Tristan (b. 1803)
- Santa Barraza (b. 1951)
- Teddy Riner (b. 1989)
Venus de Milo
- 876 – Abbasid forces decisively defeated the Saffarid emir Ya'qub ibn Laith, forcing the latter to halt his advance into Iraq.
- 1630 – Kiliaen van Rensselaer purchased land near present-day Albany, New York, to establish Rensselaerswyck, which became the most successful patroonship under the Dutch West India Company.
- 1820 – The Venus de Milo (pictured), an ancient Greek statue of a woman with its arms missing, was discovered on the island of Milos.
- 1961 – A large explosion on board the MV Dara in the Persian Gulf killed 238 people.
- 2008 – On board Soyuz TMA-12, Yi So-yeon became the first Korean astronaut.
- Thomas of Tolentino (d. 1321)
- Marie Byles (b. 1900)
- Shecky Greene (b. 1926)
- Mirsada Burić (b. 1970)
"Au clair de la lune" by Édouard-Léon
Scott de Martinville
Scott de Martinville
April 9: Day of Valor in the Philippines (1942); Vimy Ridge Day in Canada (1917)
- 193 – Year of the Five Emperors: Septimius Severus was proclaimed Roman emperor by his troops at Carnuntum in modern-day Austria.
- 1388 – Despite being vastly outnumbered, forces of the Old Swiss Confederacy defeated an Austrian army at the Battle of Näfels.
- 1860 – Édouard-Léon Scott de Martinville recorded himself singing "Au clair de la lune" on his phonautograph, producing the oldest known recording of an audible human voice (audio featured).
- 1976 – The first EMD F40PH, Amtrak's most widespread diesel locomotive for many years, entered into service.
- 2021 – Prince Philip, the consort of Queen Elizabeth II, died at Windsor Castle aged 99.
- Francis Bacon (d. 1626)
- Mary Jackson (b. 1921)
- Hugh Hefner (b. 1926)
- Nika Mühl (b. 2001)
April 10: Siblings Day in parts of Canada and the United States
Mount Tambora
- 847 – Pope Leo IV was consecrated without imperial consent following the Saracen sack of Rome.
- 1741 – War of the Austrian Succession: Prussian forces defeated Austrian troops at the Battle of Mollwitz in present-day Małujowice, Poland, cementing Frederick II's authority over the newly conquered territory of Silesia.
- 1815 – Mount Tambora (pictured) in Indonesia began the most powerful volcanic eruption in recorded history, killing at least 71,000 people and affecting temperatures worldwide.
- 2019 – Scientists from the Event Horizon Telescope project released the first image of the black hole at the center of the galaxy M87.
- Wilhelm Egon von Fürstenberg (d. 1704)
- Dolores Huerta (b. 1930)
- Carol Robinson (b. 1956)
- Savinho (b. 2004)
April 11: World Parkinson's Day
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Anastasius I Dicorus
- 491 – Anastasius I Dicorus (pictured) became the Eastern Roman emperor.
- 1885 – Luton Town Football Club was founded in England.
- 1951 – The Stone of Scone, removed months earlier by Scottish students, was found on the altar of Arbroath Abbey.
- 1973 – On the Art of the Cinema, a treatise on film propaganda in support of the ruling Workers' Party of Korea written by the future North Korean leader Kim Jong Il, was published.
- 2011 – A bomb exploded at Kastryčnickaja station on the Minsk Metro in Belarus, killing 15 people and injuring more than 200.
- Stephen IV of Hungary (d. 1165)
- Seymour H. Knox I (b. 1861)
- Panama Al Brown (d. 1951)
- Milly Alcock (b. 2000)
April 12: Cosmonautics Day in Russia; Yuri's Night
Yuri Gagarin
- 1776 – American Revolution: The North Carolina Provincial Congress passed the Halifax Resolves, the first official action in the American colonies calling for independence from Great Britain.
- 1961 – Aboard Vostok 1, Soviet cosmonaut Yuri Gagarin performed the first human spaceflight, completing one orbit of Earth in 108 minutes.
- 1993 – Bosnian War: NATO forces began Operation Deny Flight to enforce a no-fly zone over Bosnia and Herzegovina ordered by the United Nations Security Council.
- 2013 – Four Chadian soldiers were killed in a suicide bombing by jihadist rebels in Kidal, Mali.
- Margaret of Bourbon, Queen of Navarre (d. 1256)
- Beverly Cleary (b. 1916)
- Jane Withers (b. 1926)
- Sydney Allard (d. 1966)
April 13: Yom HaShoah in Israel (2026)
George Frideric Handel
- 1742 – The first performance of the oratorio Messiah by George Frideric Handel (pictured) took place in Dublin.
- 1829 – The Roman Catholic Relief Act received royal assent, removing the most substantial restrictions on Catholics in the United Kingdom.
- 1976 – Forty people died in an explosion at an ammunition factory in Lapua, Finland.
- 1996 – An Israel Defense Forces helicopter fired rockets at an ambulance, killing two women and four children in Mansouri, Lebanon.
- 2009 – Andrew Hussie's webcomic Homestuck debuted, and later concluded on the same day in 2016.
- Ida of Lorraine (d. 1113)
- Catherine de' Medici (b. 1519)
- Max Weinberg (b. 1951)
- Neco Williams (b. 2001)
April 14: Tamil New Year and other New Year festivals in South and Southeast Asia; Day of the Georgian Language (1978)
Apollo 13 mission patch
- 966 – Mieszko I, the ruler of Poland, converted to Christianity, an event considered to be the founding of the Polish state.
- 1471 – Wars of the Roses: The Yorkists under Edward IV defeated the Lancastrians at the Battle of Barnet, killing Richard Neville, Earl of Warwick.
- 1970 – After an oxygen tank aboard Apollo 13 (mission patch pictured) exploded, disabling the spacecraft's electrical and life-support systems, astronaut Jack Swigert reported: "Houston, we've had a problem here".
- 2015 – Western Kentucky University announced a five-year suspension of their swimming and diving programs as a result of a hazing scandal.
- Averroes (b. 1126)
- Lady Catherine Jones (d. 1740)
- Barbara Anderson (b. 1926)
- Santiago Abascal (b. 1976)
April 15: Universal Day of Culture; Day of the Sun in North Korea; Jackie Robinson Day and Tax Day in the United States
Henry VI, Holy Roman Emperor
- 769 – The final session of the Lateran Council, convened to rectify abuses in the papal electoral process that had led to the elevation of the antipopes Constantine II and Philip, was held in Rome.
- 1191 – Henry VI, King of Germany (pictured), was crowned Holy Roman Emperor.
- 1755 – A Dictionary of the English Language by Samuel Johnson was first published, becoming one of the most influential dictionaries in the history of English.
- 1802 – English poet William Wordsworth and his sister Dorothy encountered a "long belt" of daffodils near Ullswater, inspiring him to pen his best-known work, "I Wandered Lonely as a Cloud".
- 1989 – The death of former Chinese General Secretary Hu Yaobang triggered a series of events that led to the Tiananmen Square protests in Beijing.
- 2021 – A mass shooting at a FedEx Ground facility in Indianapolis, Indiana, killed nine and injured seven.
- Mary Grant Roberts (b. 1841)
- Joe Davis (b. 1901)
- Soichi Noguchi (b. 1965)
- Greta Garbo (d. 1990)
Harriet Quimby
- 69 – After defeat by Vitellius' troops at Bedriacum, Roman emperor Otho killed himself.
- 556 – Emperor Justinian I approved and consecrated Pope Pelagius I.
- 1912 – American pilot Harriet Quimby (pictured) became the first woman to fly across the English Channel.
- 1917 – World War I: Several French army corps began a massive assault against the German-occupied Chemin des Dames ridge, south of Laon, France.
- 2001 – India and Bangladesh began a six-day conflict over their disputed border, which ended in a stalemate.
- 2013 – Boko Haram militants clashed with government forces, beginning the Baga massacre.
- Aphra Behn (d. 1689)
- Johnnie Lewis and R. Carlos Nakai (b. 1946)
- Johnny Peirson (d. 2021)
April 17: Independence Day in Syria (1946)
Artist's impression of Kepler-186f
- 1080 – Canute IV became King of Denmark upon the death of his brother Harald III.
- 1809 – Napoleonic Wars: After a three-day chase, the French ship D'Hautpoul was captured off Puerto Rico by a British squadron under Alexander Cochrane.
- 1951 – The Peak District was designated the first national park in the United Kingdom.
- 1975 – The Khmer Rouge captured Phnom Penh, the capital of the Khmer Republic, ending the Cambodian Civil War and establishing the socialist state of Democratic Kampuchea.
- 2014 – NASA announced the discovery of Kepler-186f (pictured), the first exoplanet with a radius similar to Earth's discovered in the habitable zone of another star.
- Marino Faliero (d. 1355)
- Hannah Webster Foster (d. 1840)
- Karen Blixen (b. 1885)
- Lucrețiu Pătrășcanu (d. 1954)
Roland Garros
- 1775 – American Revolutionary War: Colonists Paul Revere and William Dawes, later joined by Samuel Prescott, began a midnight ride to warn residents of Lexington and Concord, Massachusetts, about the impending arrival of British troops.
- 1881 – The painted ceilings of the Natural History Museum, London, were unveiled when the building opened its doors to the public.
- 1915 – World War I: Hit by ground fire, French aviation pioneer Roland Garros (pictured) landed his aircraft behind enemy lines and was taken prisoner by German forces.
- 1949 – The Republic of Ireland Act 1948 came into force, describing Ireland as a republic and ending its membership in the Commonwealth of Nations.
- 1975 – Aryabhata, India's first satellite, was launched from Kapustin Yar in the Soviet Union.
- Ippolita Maria Sforza (b. 1445)
- Polydore Vergil (d. 1555)
- Jean Guillou (b. 1930)
- Albert Einstein (d. 1955)
April 19: Primrose Day in London
Aftermath of the Oklahoma City bombing
- 1713 – With no living male heirs, Charles VI, Holy Roman Emperor, issued the Pragmatic Sanction, allowing the Habsburg hereditary possessions to be inherited by a daughter.
- 1809 – War of the Fifth Coalition: French general Louis-Nicolas Davout defeated an Austrian force in Lower Bavaria, allowing him to rejoin the main French army.
- 1875 – The Minute Man is unveiled as part of the centennial celebration of the Battles of Lexington and Concord.
- 1987 – The fictional Simpson family made their first appearance in the short "Good Night", aired in a segment of the The Tracey Ullman Show.
- 1995 – A truck bombing destroyed much of the Alfred P. Murrah Federal Building (aftermath pictured) in Oklahoma City, killing 168 people and injuring more than 680 others.
- 2015 – Freddie Gray, a 25-year-old African American, died of injuries sustained while in the custody of the Baltimore Police Department.
- Uesugi Kenshin (d. 1578)
- Elizabeth Dilling (b. 1894)
- Denis O'Brien (b. 1958)
Vädersolstavlan
April 20: Patriots' Day in some parts of the United States (2026); Easter (Christianity, 2025); first day of Ridván (Baháʼí Faith, 2025); 420 (cannabis culture)
- 1535 – Sun dogs were observed over Stockholm, Sweden, inspiring Vädersolstavlan (pictured), the oldest coloured depiction of the city.
- 1657 – Anglo-Spanish War: The English navy sank much of a Spanish treasure fleet at the Battle of Santa Cruz de Tenerife off the Canary Islands, but was unable to capture the treasure.
- 1968 – Pierre Trudeau was sworn in as prime minister of Canada, succeeding Lester B. Pearson.
- 2004 – An incomplete tunnel leading to the Nicoll Highway MRT station in Singapore collapsed, resulting in four deaths and the station's relocation.
- 2010 – An explosion on Deepwater Horizon, an offshore rig in the Gulf of Mexico, resulted in the largest marine oil spill in history.
- William Bedloe (b. 1650)
- David Brainerd (b. 1718)
- Frances Ames (b. 1920)
- Kojo Laing (d. 2017)
April 21: Natale di Roma in Italy (AD 47); Patriots' Day in some parts of the United States (2025)
Wignacourt Aqueduct
- 900 – A debt was pardoned by the chief of Tondo on the island of Luzon and recorded on the Laguna Copperplate Inscription, the earliest known calendar-dated document found in the Philippines.
- 1615 – The Wignacourt Aqueduct (pictured) in Malta was inaugurated, and was used to carry water to Valletta for about 300 years.
- 1725 – J. S. Bach's cantata Bleib bei uns, denn es will Abend werden, was first performed on Easter Monday.
- 1925 or 1926 – Al-Baqi Cemetery in Medina, the site of the mausoleum of four of the Twelve Imams of Shia Islam, was demolished by Wahhabis.
- 1975 – South Vietnamese president Nguyễn Văn Thiệu resigned on hearing of the fall of Xuân Lộc, the last battle of the Vietnam War.
- Pope Alexander II (d. 1073)
- Antonín Kammel (b. 1730)
- Cheryl Gillan (b. 1952)
- Vivian Maier (d. 2009)
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Pedro Álvares Cabral
- 1500 – A fleet commanded by Pedro Álvares Cabral (pictured) anchored off present-day Brazil; he later claimed the land for the Portuguese Empire.
- 1885 – The first meeting of the Colonial Defence Committee, a standing committee of the British Colonial Office, was held to discuss the defence of Barbados.
- 1918 – The short-lived Transcaucasian Democratic Federative Republic was established on territory formerly part of the Russian Empire.
- 1951 – Korean War: The Chinese People's Volunteer Army attacked positions occupied mainly by Australian and Canadian forces, starting the Battle of Kapyong.
- 2016 – The Paris Agreement, an international treaty on climate change, opened for signature and was signed by 175 parties.
- Philip of Poitou (d. 1208)
- Robert Ludwig Kahn (b. 1923)
- Regine Velasquez (b. 1970)
- Donna Williams (d. 2017)
April 23: National Sovereignty and Children's Day in Turkey (1920)
Liberation of Flossenbürg
- 1467 – Ottoman wars in Europe: Albanian leader Skanderbeg defeated an Ottoman army under Ballaban Badera to raise the siege of Krujë.
- 1945 – World War II: The US Army's 90th Infantry Division liberated Flossenbürg concentration camp (pictured) in Germany, freeing 1,500 prisoners.
- 1976 – The American band the Ramones released their debut album, which became highly influential on the emerging punk rock movement.
- 1979 – Blair Peach, a New Zealand teacher, was fatally injured while taking part in an Anti-Nazi League demonstration against a National Front election meeting in Southall, London.
- 2018 – A man intentionally struck pedestrians with a van on Yonge Street in Toronto, Canada, leading to 11 deaths.
- Joan of France (b. 1464)
- Pandita Ramabai (b. 1858)
- Satyajit Ray (d. 1992)
April 24: Armenian Genocide Remembrance Day (1915)
Hubble Space Telescope
- 1837 – A fire broke out in Surat, India, which went on to destroy about 75% of the city.
- 1914 – The Franck–Hertz experiment, the first electrical measurement to clearly demonstrate quantum mechanics, was presented to the German Physical Society.
- 1916 – Irish republicans led by Patrick Pearse began the Easter Rising against British rule in Ireland, and proclaimed the Irish Republic an independent state.
- 1980 – Eight U.S. servicemen died in Operation Eagle Claw, a failed attempt to rescue the captives in the Iran hostage crisis.
- 1990 – The Hubble Space Telescope (pictured) was launched aboard STS-31 by Space Shuttle Discovery.
- 1993 – The Provisional Irish Republican Army detonated a truck bomb in London's financial district in Bishopsgate, killing one person, injuring forty-four others, and causing damage that cost £350 million to repair.
- Mellitus (d. 624)
- Kumar Dharmasena (b. 1971)
- Estée Lauder (d. 2004)
- Nancy Dorian (d. 2024)
April 25: Liberation Day in Italy (1945); Anzac Day in Australia and New Zealand
USS Triton
- 1643 – First English Civil War: Despite being vastly outnumbered, a Parliamentarian force under James Chudleigh defeated a Royalist army near Okehampton, Devon, at the Battle of Sourton Down.
- 1915 – First World War: The Australian and New Zealand Army Corps landed at Anzac Cove while British and French troops landed at Cape Helles to begin the Allied invasion of the Gallipoli peninsula in the Ottoman Empire.
- 1916 – The first issue of Irish War News was published in Ireland.
- 1960 – The U.S. Navy submarine Triton (pictured) completed the first submerged circumnavigation of the world.
- 1983 – The first issue of The Jakarta Post was published in Indonesia.
- 2015 – Nepal was struck by a magnitude-7.8 earthquake, killing more than 8,000 people.
- Naresuan (d. 1605)
- Georg Sverdrup (b. 1770)
- Emmeline B. Wells (d. 1921)
Lorenzo de' Medici
- 1478 – In a conspiracy to replace the Medici family as rulers of the Republic of Florence, the Pazzi family attacked Lorenzo de' Medici (pictured) and killed his brother Giuliano at Florence Cathedral.
- 1915 – First World War: Britain, France and Russia signed a secret treaty promising territory to Italy if it joined the war on their side.
- 1933 – The Gestapo, the official secret police force of Nazi Germany, was established.
- 1989 – A tornado struck the Manikganj District of Bangladesh and killed an estimated 1,300 people, making it the deadliest tornado in history.
- 1994 – Just before landing at Nagoya Airport, Japan, the copilot of China Airlines Flight 140 inadvertently triggered the takeoff/go-around switch, causing the aircraft to crash and killing 264 of the 271 people on board.
- Marcus Aurelius (b. 121)
- Alice Ayres (d. 1885)
- S. J. V. Chelvanayakam (d. 1977)
April 27: Koningsdag in the Netherlands
Raising the Flag on the Three-Country Cairn
- 630 – Shahrbaraz usurped the throne of the Sasanian Empire from Ardashir III, but was himself killed six weeks later.
- 1945 – World War II: The photograph Raising the Flag on the Three-Country Cairn (pictured) was taken after German troops withdrew to Norway at the end of the Lapland War.
- 1965 – Indonesia–Malaysia confrontation: British forces repelled a surprise Indonesian attack on a base at Plaman Mapu in Sarawak.
- 1997 – American spree killer Andrew Cunanan murdered Jeffrey Trail, a former friend and a Gulf War veteran, who became the first victim of Cunanan's killing spree.
- 2005 – The Airbus A380, the world's largest passenger airliner, made its maiden flight from Toulouse, France.
- Ulysses S. Grant (b. 1822)
- Sheila Scott (b. 1922)
- Olivier Messiaen (d. 1992)
April 28: Workers' Memorial Day
Mounted police maintaining order at the 1923 FA Cup final
- 1253 – The Japanese monk Nichiren declared the mantra Namu Myōhō Renge Kyō, now a central part of Nichiren Buddhism.
- 1789 – Fletcher Christian, the acting lieutenant on board the Royal Navy ship Bounty, led a mutiny against the commander William Bligh in the South Pacific.
- 1923 – The FA Cup final (crowd and police pictured) between Bolton Wanderers and West Ham United was held on the opening day of the Empire Stadium in London.
- 1945 – World War II: Benito Mussolini, the deposed fascist dictator of Italy, was executed by partisans in Giulino.
- 1983 – The West German news magazine Stern published excerpts from the purported diaries of Adolf Hitler, later revealed to be forgeries.
- Bajirao I (d. 1740)
- Jane Cobden (b. 1851)
- Regina Martínez Pérez (d. 2012)
HMS Endeavour
- 1760 – Seven Years' War: France began an unsuccessful attempt to retake Quebec City, which had been captured by Britain.
- 1770 – On his first voyage, British explorer James Cook and the crew of HMS Endeavour (pictured) landed at Botany Bay, making the first recorded European landfall on the eastern coast of Australia.
- 1922 - Sixteen-year-old Lilian Salkeld became the first woman to walk from London to Brighton
- 1945 – World War II: The U.S. Army liberated Dachau, the first Nazi concentration camp, and killed German prisoners of war.
- 1995 – Before a crowd of about 165,000 at the Rungrado 1st of May Stadium, Ric Flair and Antonio Inoki competed in the main event of Collision in Korea, the highest attended professional wrestling event of all time.
- 2015 – The ringleaders of the Bali Nine were executed in Indonesia for attempting to smuggle 8.3 kg (18 lb) of heroin to Australia in 2005.
- George Farquhar (d. 1707)
- Marietta Blau (b. 1894)
- John Compton (b. 1925)
- Giacomo dalla Torre (d. 2020)
April 30: Yom HaZikaron in Israel (2025)
Evacuees on the USS Midway
- 311 – The Diocletianic Persecution of Christians officially ended in the eastern Roman Empire.
- 1943 – Second World War: The Royal Navy submarine HMS Seraph began Operation Mincemeat to deceive Germany about the upcoming invasion of Sicily.
- 1963 – A refusal by the Bristol Omnibus Company and the Transport and General Workers' Union to permit the employment of black bus crews led to a bus boycott in Bristol, England.
- 1975 – American forces completed a helicopter evacuation (aircraft and evacuees pictured) of U.S. citizens, South Vietnamese civilians and others from Saigon, just before North Vietnamese troops captured the city and ended the Vietnam War.
- 2021 – A crowd crush killed 45 people during the annual pilgrimage to the tomb of Rabbi Shimon bar Yochai in Israel.
- Marie of the Incarnation (d. 1672)
- Emily Stowe (d. 1903)
- Kirsten Dunst (b. 1982)
Selected anniversaries / On this day archive
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