|<<||Selected anniversaries for April||>>|
|An archive of historical anniversaries that appeared on the Main Page|
2018 day arrangement
- 528 – The unnamed daughter of Emperor Xiaoming of Northern Wei became the first female in Chinese history to ascend to the imperial throne and was dethroned the next day.
- 1833 – Mexican Texans met at San Felipe de Austin to begin the Convention of 1833.
- 1918 – The United Kingdom's Royal Air Force was founded.
- 1924 – As a result of the failed Beer Hall Putsch, Adolf Hitler (pictured) was sentenced to five years in prison for treason.
- 1978 – By presidential decree, the Philippine College of Commerce was converted to a chartered state university and renamed the Polytechnic University of the Philippines.
- 1513 – Spanish conquistador Juan Ponce de León (pictured) sighted Florida, becoming the first European known to do so, purportedly while searching for the Fountain of Youth in the New World.
- 1863 – In Richmond, Virginia, U.S., about 5,000 people, mostly poor women, rioted in protest of the exorbitant price of bread.
- 1973 – The Liberal Movement broke away from the Liberal and Country League in South Australia.
- 1992 – Bosnian War: At least 48 civilians were killed in the town of Bijeljina.
- 2002 – Operation Defensive Shield: Approximately 200 Palestinian militants fled the advancing Israel Defense Forces into the Church of the Nativity in Bethlehem, starting a month-long standoff.
- 1043 – Edward the Confessor (depicted on seal) was crowned King of England, the last king of the House of Wessex.
- 1559 – Henry II of France and Philip II of Spain signed a treaty to end the Italian War of 1551–1559.
- 1922 – Joseph Stalin became the first General Secretary of the Communist Party of the Soviet Union.
- 1948 – An uprising began on Jeju Island, eventually leading to the deaths of between 14,000 and 30,000 individuals due to fighting between its various factions, and the violent suppression of the rebellion by the South Korean army.
- 2008 – Texas law enforcement authorities raided the Fundamentalist Church of Jesus Christ of Latter-Day Saints' YFZ Ranch, eventually removing 533 women and children from the premises.
- 1859 – Bryant's Minstrels premiered the popular American song "Dixie" in New York City as part of their blackface minstrel show.
- 1968 – American civil rights leader Martin Luther King Jr. (pictured) was assassinated in Memphis, Tennessee.
- 1988 – Governor of Arizona Evan Mecham was removed from office after being convicted in his impeachment trial.
- 1990 – The current flag of Hong Kong was adopted for post-colonial use during the Third Session of the Seventh National People's Congress.
- 2013 – A building collapsed on tribal land in Mumbra, a suburb of Thane in Maharashtra, India, causing 74 deaths.
- 1081 – The Komnenian dynasty came to full power when Alexios I Komnenos was crowned Byzantine Emperor.
- 1710 – The Statute of Anne, the first fully fledged law regulating copyright, received royal assent and went into effect five days later in Great Britain.
- 1936 – Tupelo–Gainesville tornado outbreak: An F5 tornado hit Tupelo, Mississippi, U.S., killing at least 216 people.
- 1986 – The Libyan secret service bombed a discotheque in West Berlin, killing 3 people and injuring 229 others.
- 1998 – Japan's Akashi Kaikyō Bridge (pictured), linking Awaji Island and Kobe, opened to traffic, becoming the longest suspension bridge in the world to date with a main span length of 1,991 metres (6,532 ft).
- 1712 – In New York City, a group of 23 slaves set a building on fire and escaped, but were soon recaptured.
- 1812 – Peninsular War: After a three-week siege, the Anglo-Portuguese Army, under the Earl of Wellington, captured Badajoz, Spain, and forced the surrender of the French garrison.
- 1886 – Vancouver, one of British Columbia's youngest cities, was incorporated.
- 1945 – Second World War: The Battle of Slater's Knoll on Bougainville Island concluded with a decisive victory for the Australian Army's 7th Brigade.
- 2005 – Kurdish leader Jalal Talabani (pictured) was elected by the Iraqi National Assembly as the first non-Arab President of Iraq.
- 1724 – Johann Sebastian Bach debuted the St John Passion, a musical representation of the Passion, at the St. Thomas Church in Leipzig.
- 1788 – American pioneers established the town of Marietta (now in Ohio), the first permanent American settlement in the Northwest Territory.
- 1896 – An Arctic expedition led by Norwegian explorer Fridtjof Nansen (pictured) reached 86°13.6'N, almost three degrees beyond the previous Farthest North mark.
- 1948 – The United Nations established the World Health Organization to act as a coordinating authority on international public health.
- 2010 – Violent protests in the Kyrgyz capital of Bishkek resulted in the collapse of the Kurmanbek Bakiyev government.
- 876 – Forces of the Abbasid Caliphate decisively defeated those of the Saffarid emir Ya'qub ibn Laith, forcing the latter to halt his advance into Iraq.
- 1740 – War of the Austrian Succession: The Royal Navy captured the Spanish ship of the line Princesa (pictured) and mustered her into British service.
- 1943 – Otto and Elise Hampel were executed in Berlin for their resistance activities against the Third Reich.
- 1968 – BOAC Flight 712 had an engine fire shortly after take-off from London Heathrow, leading to the deaths of five people on board, including flight attendant Jane Harrison, who was later awarded a posthumous George Cross for heroism.
- 2008 – On board Soyuz TMA-12, Yi So-yeon became the first Korean to go into space.
- 1860 – On his phonautograph machine, Édouard-Léon Scott de Martinville made the oldest known recording of an audible human voice, when he recorded himself singing "Au clair de la lune" (audio featured).
- 1866 – The Civil Rights Act of 1866, the United States' first federal law to affirm that all citizens are equally protected by the law, was enacted.
- 1940 – During the German invasion of Norway, Vidkun Quisling seized control of the government in a Nazi-backed coup d'état.
- 1948 – Fighters from the Zionist paramilitary groups Irgun and Lehi attacked Deir Yassin near Jerusalem, killing over 100.
- 2003 – Invasion of Iraq: Coalition forces captured Baghdad and the statue of Saddam Hussein in Firdos Square was toppled.
- 1815 – Mount Tambora in Indonesia began one of the most violent volcanic eruptions in recorded history, killing at least 71,000 people, and affecting worldwide temperatures for the next two years.
- 1858 – Big Ben (pictured), the bell in the Palace of Westminster's clock tower in London, was cast after the original bell had cracked during testing.
- 1944 – The Holocaust: Rudolf Vrba and Alfréd Wetzler escaped from Auschwitz; their report was one of the earliest and most detailed descriptions of the mass killings in the camp.
- 1992 – Nagorno-Karabakh War: At least 40 Armenian civilians were massacred in Maraga, Azerbaijan.
- 2009 – Fijian President Ratu Josefa Iloilo announced that he had suspended the constitution and assumed all governance in the country after it was ruled that the government of Prime Minister Frank Bainimarama was illegal.
- 1814 – The Treaty of Fontainebleau was signed, ending the War of the Sixth Coalition, and forcing Napoleon to abdicate as ruler of France and sending him into exile on Elba.
- 1913 – The Nevill Ground's pavilion was destroyed (damage pictured) in the only suffragette arson attack on a cricket ground.
- 1968 – Rudi Dutschke, the most prominent leader of the German student movement, survived an assassination attempt, which led to the largest protests to that date in Germany.
- 1993 – Inmates at the Southern Ohio Correctional Facility near Lucasville, Ohio, U.S., rioted and took over the facility for 11 days.
- 627 – King Edwin of Northumbria was converted to Christianity by Bishop Paulinus of York, who had previously saved his life.
- 1807 – The Froberg mutiny at Fort Ricasoli in Malta came to a close when the rebels blew up 600 barrels of gunpowder and escaped, although they were later caught.
- 1861 – Confederate forces began firing at Fort Sumter in the harbor of Charleston, South Carolina, starting the American Civil War.
- 1910 – SMS Zrínyi (pictured), one of the last pre-dreadnoughts built by the Austro-Hungarian Navy, was launched.
- 1994 – Husband-and-wife law partners Laurence Canter and Martha Siegel posted the first massive commercial spam on Usenet.
- 1111 – Henry V, the last ruler of the Salian dynasty, was crowned Holy Roman Emperor.
- 1829 – The Roman Catholic Relief Act was granted royal assent, removing the most substantial restrictions on Catholics in the United Kingdom.
- 1943 – World War II: German news announced the discovery of a mass grave in Katyn, Russia, of Polish prisoners of war killed by Soviet forces, causing a diplomatic rift between the Polish government-in-exile and the USSR.
- 1958 – In the midst of the Cold War, American pianist Van Cliburn (pictured) won the inaugural International Tchaikovsky Competition in Moscow.
- 1984 – Indian forces launched Operation Meghdoot, a preemptive attack on the disputed Siachen Glacier region of Kashmir, triggering a military conflict with Pakistan.
- 1561 – In Nuremberg, there was a mass sighting of celestial phenomena (illustration pictured) where observers described an "aerial battle" between odd-shaped objects.
- 1908 – The first Hauser Dam in the U.S. state of Montana failed and caused severe flooding and damage downstream.
- 1945 – The 4th Canadian (Armoured) Division deliberately destroyed the German town of Friesoythe on the orders of Major General Christopher Vokes.
- 2014 – Boko Haram kidnapped 276 female students from the Government Secondary School in the town of Chibok in Borno State, Nigeria.
- 1638 – A rebellion by Catholic Japanese peasants in Shimabara over increased taxes was put down by the Tokugawa shogunate, resulting in greater enforcement of the policy of national seclusion.
- 1738 – Serse (audio featured), an opera by Baroque composer George Frideric Handel loosely based on Xerxes I of Persia, premiered in London.
- 1936 – A group of Arabs in British Mandatory Palestine killed two Jews at a roadblock, an act widely viewed as the beginning of the violence within the Arab revolt.
- 1958 – On Walter O'Malley's initiative, the Los Angeles Dodgers and San Francisco Giants played in the first Major League Baseball game on the U.S. West Coast.
- 1994 – At a GATT ministerial meeting in Marrakesh, Morocco, representatives of 124 countries and the European Communities signed an agreement to establish the World Trade Organization.
- 1818 – The United States Senate ratified the Rush–Bagot Treaty, which laid the basis for a demilitarized boundary between the U.S. and British North America.
- 1847 – New Zealand Wars: A minor Māori chief was accidentally shot by a junior British Army officer in the Petre settlement of New Zealand's North Island, triggering the Wanganui Campaign.
- 1912 – American Harriet Quimby (pictured) became the first woman to fly across the English Channel.
- 1917 – Vladimir Lenin returned to Petrograd from Switzerland, and joined the Bolshevik movement in Russia.
- 2014 – The South Korean ferry MV Sewol sank 1.5 km (0.93 mi) offshore of Donggeochado, Jindo County, with around 300 of the 476 onboard killed.
- 1080 – The death of Harald III allowed his brother Canute IV, who later became the first Dane to be canonized, to become King of Denmark.
- 1362 – Lithuanian Crusade: After a month-long siege, the Teutonic Order captured and destroyed Kaunas Castle (reconstruction pictured) in Lithuania.
- 1907 – The first of three dreadnought battleships for Brazil was laid down, sparking a vastly expensive South American naval arms race.
- 1951 – The Peak District was designated the first national park in the United Kingdom.
- 1973 – George Lucas began writing a 13-page film treatment entitled The Star Wars.
- 1738 – By royal decree, Philip V of Spain established the Real Academia de la Historia.
- 1915 – World War I: French aviator Roland Garros landed his aircraft behind enemy lines and was taken prisoner.
- 1938 – Superman, created by Jerry Siegel and Joe Shuster, made his debut in Action Comics #1, the first true superhero comic book.
- 1958 – Controversial American poet Ezra Pound (pictured) was released from St. Elizabeths Hospital in Washington, D.C., where he had been incarcerated for twelve years.
- 1996 – Israeli forces shelled Qana, Lebanon, during Operation Grapes of Wrath, killing at least 100 civilians and injuring more than 110 others at a UN compound.
- 797 – Byzantine emperor Constantine VI was captured, blinded, and imprisoned by the supporters of his mother Irene.
- 1713 – With no living male heirs, Holy Roman Emperor Charles VI issued the Pragmatic Sanction to ensure one of his daughters would inherit the Habsburg lands.
- 1903 – A two-day anti-Jewish riot began in Kishinev, Bessarabia (now in Moldova), causing the death of nearly 50 Jews and focusing worldwide negative attention on the persecution of Jews in Russia.
- 1927 – American actress Mae West (pictured) was sentenced to ten days in jail for "corrupting the morals of youth" for her play Sex.
- 1971 – The first space station, Salyut 1, was launched from the Baikonur Cosmodrome near Tyuratam, Kazakh SSR, USSR.
- 1535 – The appearance of sun dogs over Stockholm, Sweden, inspired the painting Vädersolstavlan, the oldest colour depiction of the city.
- 1818 – Four days after the Court of King's Bench in England upheld a murder suspect's right to trial by battle in Ashford v Thornton, the plaintiff declined to fight, allowing the defendant to go free.
- 1968 – British Member of Parliament Enoch Powell made his controversial "Rivers of Blood" speech in opposition to immigration and anti-discrimination legislation, resulting in his removal from the Shadow Cabinet.
- 1978 – Soviet fighters shot at Korean Air Lines Flight 902 after it violated Soviet airspace, forcing it to make an emergency landing due to damage.
- 2008 – American Danica Patrick (pictured) won the Indy Japan 300, becoming the first woman to win an IndyCar auto race.
- 43 BC – Forces led by Mark Antony fought the Battle of Mutina against those of Decimus Brutus, one of Julius Caesar's assassins.
- 1509 – Henry VIII became King of England, following the death of his father Henry VII, eventually becoming a significant figure in the history of the English monarchy.
- 1925 or 1926 – Al-Baqi cemetery, former site of the mausoleum (pictured) of four of the Twelve Imams of Shia Islam, was demolished by Wahhabis.
- 1970 – In response to a dispute over wheat production quotas, the Principality of Hutt River proclaimed its secession from Western Australia.
- 2010 – Ukraine and Russia signed the Kharkiv Pact to extend the Russian lease on naval facilities in Crimea.
- 1500 – Portuguese explorer Pedro Álvares Cabral and his crew landed in present day Brazil and claimed the land for Portugal.
- 1889 – Over 50,000 people rushed to claim (pictured) a piece of the available two million acres (8,000 km2) in the Unassigned Lands, the present-day U.S. state of Oklahoma, entirely founding the brand-new Oklahoma City.
- 1915 – The Germans released chlorine gas in the Second Battle of Ypres, causing over 6,000 casualties, with many deaths within ten minutes by asphyxiation in the first large-scale successful use of poison gas in World War I.
- 1948 – Civil War in Mandatory Palestine: The Jewish paramilitary group Haganah captured Haifa from the Arab Liberation Army.
- 2013 – The Royal Canadian Mounted Police arrested two men who were plotting to commit terrorist attacks against Via Rail Canada operations.
- 1516 – The best-known version of the Reinheitsgebot, the German Beer Purity Law, was adopted across the entirety of Bavaria.
- 1661 – Charles II, King of England, Ireland, and Scotland, was crowned at Westminster Abbey.
- 1918 – First World War: The British Royal Navy conducted an unsuccessful raid on the German-occupied port of Bruges-Zeebrugge in Belgium.
- 1951 – American journalist William N. Oatis was arrested for espionage by the Communist government of Czechoslovakia.
- 1985 – The Coca-Cola Company replaced its flagship soft drink, Coca-Cola, with "New Coke" (pictured), which generated so much negative response that the company put the previous formula back on the market less than three months later.
- 1479 BC – Thutmose III became the sixth Pharaoh of the Eighteenth Dynasty of Egypt, with his aunt Hatshepsut as co-regent.
- 1800 – The Library of Congress (building pictured), the de facto national library of the United States, was established as part of an act of Congress providing for the transfer of the nation's capital from Philadelphia to Washington, D.C.
- 1914 – The Franck–Hertz experiment, the first electrical measurement to clearly demonstrate quantum mechanics, was presented to the German Physical Society.
- 1980 – Eight U.S. servicemen died in Operation Eagle Claw, a failed attempt to rescue the captives in the Iran hostage crisis.
- 2013 – A building in the Savar Upazila of Dhaka, Bangladesh, collapsed, killing 1,134 people, making it the deadliest accidental structural failure in modern history.
- 799 – Pope Leo III was attacked by partisans of his predecessor Adrian I, but was rescued and taken to Charlemagne, as described in the epic Karolus magnus et Leo papa.
- 1846 – An open conflict between the military forces of the United States and Mexico began over the disputed border of Texas north of the Rio Grande and south of the Nueces River, later serving as a primary justification for the Mexican–American War.
- 1915 – First World War: 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.
- 1990 – Violeta Chamorro (pictured) took office as the President of Nicaragua, the first woman elected in her own right as a head of state in the Americas.
- 2015 – A 7.8 MW earthquake struck Nepal, resulting in 8,964 deaths and 21,952 injuries.
- 1478 – In a conspiracy to replace the Medici family as rulers of the Florentine Republic, the Pazzi family attacked Lorenzo de' Medici and killed his brother Giuliano during High Mass.
- 1865 – U.S. Army soldiers cornered and fatally shot John Wilkes Booth, the assassin of U.S. President Abraham Lincoln, in rural northern Virginia, ending a twelve-day manhunt.
- 1958 – The Baltimore and Ohio Railroad's Royal Blue (pictured), one of the first major electric trains in the U.S., made its final run.
- 1970 – The World Intellectual Property Organization came into being when its convention entered into force.
- 1994 – Just prior to landing at Nagoya International Airport, the copilot of China Airlines Flight 140 inadvertently pushed the wrong button, causing the plane to crash and killing 264 of the 271 people on board.
- 395 – Aelia Eudoxia married Byzantine emperor Arcadius without the knowledge or consent of Rufinus, the Praetorian prefect who had intended for his own daughter to wed the emperor.
- 1521 – Filipino natives led by chieftain Lapu-Lapu killed Portuguese explorer Ferdinand Magellan and more than forty Spanish soldiers at the Battle of Mactan (pictured).
- 1777 – American Revolutionary War: British Army regulars defeated Patriot militias in the Battle of Ridgefield, galvanizing resistance in the Connecticut Colony.
- 1967 – The Expo 67 world's fair opened in Montreal, with 62 nations participating and more than 50 million visitors ultimately attending.
- 1993 – Members of the Zambia national football team were killed in a plane crash en route to play a 1994 World Cup qualifying match against Senegal.
- 1789 – About 1,300 miles (2,100 km) west of Tahiti, Fletcher Christian, acting lieutenant on board the Royal Navy ship Bounty, led a mutiny against the commander, William Bligh.
- 1887 – A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé (pictured) was released on the order of William I, the German Emperor, defusing a possible war.
- 1910 – Frenchman Louis Paulhan won the London to Manchester air race, the first long-distance aeroplane race in England.
- 1952 – Japan and the Republic of China signed the Treaty of Taipei to officially end the Second Sino-Japanese War, seven years after fighting in that conflict ended due to World War II.
- 2008 – The Trump International Hotel and Tower in Chicago, the world's highest residence above ground-level at the time (1,389 feet (423 m)), held its full service grand opening.
- 1862 – American Civil War: Union forces under David Farragut captured New Orleans, securing access into the Mississippi River.
- 1944 – Second World War: British agent Nancy Wake parachuted into Auvergne, becoming a liaison between the Special Operations Executive and the local Maquis group
- 1975 – Vietnam War: North Vietnam concluded its East Sea Campaign by capturing all of the Spratly Islands that were being held by South Vietnam.
- 1991 – A powerful tropical cyclone (pictured) struck Chittagong, Bangladesh, killing at least 138,000 people and leaving as many as 10 million homeless across the region.
- 1997 – The 1993 Chemical Weapons Convention went into effect, outlawing the production, stockpiling and use of chemical weapons in those countries that ratified the arms control agreement.
- 1557 – Arauco War: Spanish forces of the Governor Francisco de Villagra launched a surprise dawn attack against the Mapuche headed by their toqui Lautaro in what is now Chile.
- 1636 – Eighty Years' War: Dutch Republic forces recaptured a strategically important fort from Spain after a nine-month siege.
- 1883 – Governor of New York Grover Cleveland signed legislation that led to the creation of Niagara Falls State Park (American Falls pictured), the United States' first state park.
- 1963 – The Bristol Omnibus Company's refusal to employ Black or Asian bus crews led to a bus boycott in Bristol, drawing national attention to racial discrimination in the United Kingdom.
- 2009 – A Dutch man drove his car at high speed into a parade in an attempt to kill the Dutch royal family.