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 to the bishops of his empire, supporting the Monophysite christological position.
- 537 - Siege of Rome: The Byzantine general Belisarius receives his promised reinforcements, 1,600 cavalry, mostly of Hunnic or Slavic origin and expert bowmen. Despite shortages, he starts raids against the Gothic camps and Vitiges but is forced into a stalemate.
- 1241 - Battle of Liegnitz: Mongol forces defeat the Polish and German armies.
- 1288 - Mongol invasions of Vietnam: Yuan forces are defeated by Trần forces in the Battle of Bach Dang in present-day northern Vietnam.
- 1388 - Despite being outnumbered 16:1, forces of the Old Swiss Confederacy are victorious over the Archduchy of Austria in the Battle of Näfels.
- 1454 - The Treaty of Lodi is signed, establishing a balance of power among northern Italian city-states for almost 50 years.
- 1511 - Resettled Shiite Muslims rise up in the Şahkulu rebellion under the leadership of Şahkulu against the Ottoman Empire.
1601–1900
- 1609 - Eighty Years' War: Spain and the Dutch Republic sign the Treaty of Antwerp to initiate twelve years of truce.
- 1609 - Philip III of Spain issues the decree of the "Expulsion of the Moriscos".
- 1682 - Robert Cavelier de La Salle discovers the mouth of the Mississippi River, claims it for France and names it Louisiana.
- 1784 - The Treaty of Paris, ratified by the United States Congress on January 14, 1784, is ratified by King George III of the Kingdom of Great Britain, ending the American Revolutionary War. Copies of the ratified documents are exchanged on May 12, 1784.
- 1860 - On his phonautograph machine, Édouard-Léon Scott de Martinville makes the first known recording of an audible human voice.
- 1865 - American Civil War: Robert E. Lee surrenders the Army of Northern Virginia to Ulysses S. Grant at Appomattox Court House, Virginia, effectively ending the war.
1901–present
- 1909 - The U.S. Congress passes the Payne–Aldrich Tariff Act.
- 1917 - World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
- 1918 - World War I: The Battle of the Lys: The Portuguese Expeditionary Corps is crushed by the German forces during what is called the Spring Offensive on the Belgian region of Flanders.
- 1937 - The Kamikaze arrives at Croydon Airport in London. It is the first Japanese-built aircraft to fly to Europe.
- 1939 - African-American singer Marian Anderson gives a concert at the Lincoln Memorial after being denied the use of Constitution Hall by the Daughters of the American Revolution.
- 1940 - World War II: Operation Weserübung: Germany invades Denmark and Norway.
- 1940 - Vidkun Quisling seizes power in Norway.
- 1942 - World War II: The Battle of Bataan ends and the Bataan Death March begins.
- 1942 - World War II: An Indian Ocean raid by Japan's 1st Air Fleet sinks the British aircraft carrier and the Australian destroyer.
- 1945 - Dietrich Bonhoeffer, Lutheran pastor and anti-Nazi dissident, is executed by the Nazi regime.
- 1945 - World War II: The German heavy cruiser Admiral Scheer is sunk by the Royal Air Force.
- 1945 - World War II: The Battle of Königsberg, in East Prussia, ends.
- 1945 - The United States Atomic Energy Commission is formed.
- 1946 - About 500 postal workers in Tel Aviv and Jaffa went on strike.
- 1947 - The Glazier–Higgins–Woodward tornadoes kill 181 and injure 970 in Texas, Oklahoma, and Kansas.
- 1947 - The Journey of Reconciliation, the first interracial Freedom Ride begins through the upper South in violation of Jim Crow laws. The riders wanted enforcement of the United States Supreme Court's 1946 Irene Morgan decision that banned racial segregation in interstate travel.
- 1947 - United Nations Security Council Resolution 22 relating to Corfu Channel incident is adopted.
- 1948 - Jorge Eliécer Gaitán's assassination provokes a violent riot in Bogotá, and a further ten years of violence in Colombia.
- 1948 - Fighters from the Irgun and Lehi Zionist terror groups attacked Deir Yassin near Jerusalem, killing over 100 Palestinians.
- 1952 - Hugo Ballivián's government is overthrown by the Bolivian National Revolution, starting a period of agrarian reform, universal suffrage and the nationalization of tin mines
- 1952 - Japan Air Lines Flight 301 crashes into Mount Mihara, Izu Ōshima, Japan, killing 37.
- 1957 - The Suez Canal in Egypt is cleared and opens to shipping following the Suez Crisis.
- 1959 - Project Mercury: NASA announces the selection of the United States' first seven astronauts, whom the news media quickly dub the "Mercury Seven".
- 1960 - Dr. Hendrik Verwoerd, Prime Minister of South Africa and architect of apartheid, narrowly survives an assassination attempt by a white farmer, David Pratt in Johannesburg.
- 1967 - The first Boeing 737 makes its maiden flight.
- 1969 - The first British-built Concorde 002 makes its maiden flight from Filton to RAF Fairford with Brian Trubshaw as the test pilot.
- 1980 - The Iraqi regime of Saddam Hussein kills philosopher Muhammad Baqir al-Sadr and his sister Bint al-Huda after three days of torture.
- 1981 - The U.S. Navy nuclear submarine accidentally collides with the Nissho Maru, a Japanese cargo ship, sinking it and killing two Japanese sailors.
- 1989 - Tbilisi massacre: An anti-Soviet peaceful demonstration and hunger strike in Tbilisi, demanding restoration of Georgian independence, is dispersed by the Soviet Army, resulting in 20 deaths and hundreds of injuries.
- 1990 - An IRA bombing in County Down, Northern Ireland, kills three members of the UDR.
- 1990 - The Sahtu Dene and Metis Comprehensive Land Claim Agreement is signed for in the Mackenzie Valley of the western Arctic.
- 1990 - An Embraer EMB 120 Brasilia collides in mid-air with a Cessna 172 over Gadsden, Alabama, killing both of the Cessna's occupants.
- 1991 - Georgia declares independence from the Soviet Union.
- 1992 - A U.S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug and racketeering charges. He is sentenced to 30 years in prison.
- 1994 - Space Shuttle program: Space Shuttle Endeavour is launched on STS-59.
- 2003 - Iraq War: Baghdad falls to American forces.
- 2009 - In Tbilisi, Georgia, up to 60,000 people protest against the government of Mikheil Saakashvili.
- 2011 - Six people and the perpetrator are killed and 17 injured in a mass shooting at a shopping mall in Alphen aan den Rijn, Netherlands.
- 2013 - A 6.1–magnitude earthquake strikes Iran killing 32 people and injuring over 850 people.
- 2013 - At least 13 people are killed and another three injured after a man goes on a spree shooting in the Serbian village of Velika Ivanča.
- 2014 - A student stabs 20 people at Franklin Regional High School in Murrysville, Pennsylvania.
- 2017 - The Palm Sunday church bombings at Coptic churches in Tanta and Alexandria, Egypt, take place.
- 2017 - After refusing to give up his seat on an overbooked United Express flight, Dr. David Dao Duy Anh is forcibly dragged off the flight by aviation security officers, leading to major criticism of United Airlines.
- 2021 - Burmese military and security forces commit the Bago massacre, during which at least 82 civilians are killed.
Births
Pre-1600
- 1096 - Al-Muqtafi, caliph of the Abbasid Caliphate
- 1285 - Ayurbarwada Buyantu Khan, Emperor Renzong of Yuan
- 1458 - Camilla Battista da Varano, Italian saint
- 1498 - Jean, Cardinal of Lorraine
- 1586 - Julius Henry, Duke of Saxe-Lauenburg
- 1597 - John Davenport, English minister, co-founded the New Haven Colony
- 1598 - Johann Crüger, Sorbian-German composer and theorist
1601–1900
- 1624 - Henrik Rysensteen, Dutch military engineer
- 1627 - Johann Caspar Kerll, German organist and composer
- 1634 - Countess Albertine Agnes of Nassau
- 1648 - Henri de Massue, Earl of Galway, French soldier and diplomat
- 1649 - James Scott, 1st Duke of Monmouth, English general and politician, Lord Lieutenant of Staffordshire
- 1654 - Samuel Fritz, Czech Jesuit missionary to South America
- 1680 - Philippe Néricault Destouches, French playwright
- 1686 - James Craggs the Younger, English politician, Secretary of State for the Southern Department
- 1691 - Johann Matthias Gesner, German scholar and academic
- 1717 - Georg Matthias Monn, Austrian organist, composer, and educator
- 1770 - Thomas Johann Seebeck, German physicist and academic
- 1773 - Étienne Aignan, French author and academic
- 1794 - Theobald Boehm, German flute player and composer
- 1794 - Søren Christian Sommerfelt, Norwegian priest and botanist
- 1802 - Elias Lönnrot, Finnish physician and philologist
- 1806 - Isambard Kingdom Brunel, English engineer, designed the Clifton Suspension Bridge
- 1807 - James Bannerman, Scottish theologian and academic
- 1821 - Charles Baudelaire, French poet and critic
- 1830 - Eadweard Muybridge, English photographer and cinematographer
- 1835 - Leopold II of Belgium
- 1835 - Somerset Lowry-Corry, 4th Earl Belmore
- 1846 - Paolo Tosti, Italian-English composer and educator
- 1848 - Ezequiél Moreno y Díaz, Spanish Augustinian Recollect priest and saint
- 1865 - Erich Ludendorff, German general and politician
- 1865 - Charles Proteus Steinmetz, Polish-American mathematician and engineer
- 1867 - Chris Watson, Chilean-Australian journalist and politician, 3rd Prime Minister of Australia
- 1867 - Charles Winckler, Danish tug of war competitor, discus thrower, and shot putter
- 1872 - Léon Blum, French lawyer and politician, Prime Minister of France
- 1875 - Jacques Futrelle, American journalist and author
- 1880 - Jan Letzel, Czech architect
- 1882 - Frederick Francis IV, Grand Duke of Mecklenburg-Schwerin
- 1882 - Otz Tollen, German actor
- 1883 - Frank King, American cartoonist
- 1887 - Konrad Tom, Polish actor, writer, singer, and director
- 1888 - Sol Hurok, Ukrainian-American talent manager
- 1893 - Charles E. Burchfield, American painter
- 1893 - Victor Gollancz, English publisher, founded Victor Gollancz Ltd
- 1893 - Rahul Sankrityayan, Indian linguist, author, and scholar
- 1895 - Mance Lipscomb, American singer-songwriter and guitarist
- 1895 - Michel Simon, Swiss-French actor
- 1897 - John B. Gambling, American radio host
- 1898 - Curly Lambeau, American football player and coach
- 1898 - Paul Robeson, American singer, actor, and activist
- 1900 - Allen Jenkins, American actor and singer