1793During the French Revolution, the Committee of Public Safety becomes the executive organ of the republic.
1800The Treaty of Constantinople establishes the Septinsular Republic, the first autonomous Greek state since the Fall of the Byzantine Empire. (Under the Old Style calendar then still in use in the Ottoman Empire, the treaty was signed on 21 March.)
1808John Jacob Astor incorporates the American Fur Company, that would eventually make him America's first millionaire.
1812British forces under the command of the Duke of Wellington assault the fortress of Badajoz. This would be the turning point in the Peninsular War against Napoleon-led France.
1814Nominal beginning of the Bourbon Restoration; anniversary date that Napoleon abdicates and is exiled to Elba.
1830Church of Christ, the original church of the Latter Day Saint movement, is organized by Joseph Smith and others at either Fayette or Manchester, New York.
1841U.S. President John Tyler is sworn in, two days after having become president upon William Henry Harrison's death.
1860The Reorganized Church of Jesus Christ of Latter Day Saints, later renamed Community of Christ, is organized by Joseph Smith III and others at Amboy, Illinois.
1865American Civil War: The Battle of Sailor's Creek: Confederate General Robert E. Lee's Army of Northern Virginia fights and loses its last major battle while in retreat from Richmond, Virginia, during the Appomattox Campaign.
1866The Grand Army of the Republic, an American patriotic organization composed of Union veterans of the American Civil War, is founded. It lasts until 1956.
1896In Athens, the opening of the first modern Olympic Games is celebrated, 1,500 years after the original games are banned by Roman emperorTheodosius I.
1909Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
1911During the Battle of Deçiq, Dedë Gjon Luli Dedvukaj, leader of the Malësori Albanians, raises the Albanian flag in the town of Tuzi, Montenegro, for the first time after George Kastrioti (Skanderbeg).
1917World War I: The United States declares war on Germany.
1945World War II: The Battle of Slater's Knoll on Bougainville comes to an end.
1947The first Tony Awards are presented for theatrical achievement.
1948The Finno-Soviet Treaty is signed in Moscow.
1957The flag carrier airline of Greece for decades, Olympic Airways, is founded by Aristotle Onassis following the acquisition of "TAE - Greek National Airlines".
1958Capital Airlines Flight 67 crashes in Tittabawassee Township, Michigan, near Freeland Tri-City Airport, killing 47.
1965Launch of Early Bird, the first commercial communications satellite to be placed in geosynchronous orbit.
1968In the downtown district of Richmond, Indiana, a double explosion kills 41 and injures 150.
1968Pierre Elliott Trudeau wins the Liberal Party leadership election, and becomes Prime Minister of Canada soon afterward.
1970Newhall massacre: Four California Highway Patrol officers are killed in a shootout.
1972Vietnam War: Easter Offensive: American forces begin sustained air strikes and naval bombardments.
1973The American League of Major League Baseball begins using the designated hitter.
1974In Brighton, United Kingdom, ABBA wins the 1974 edition of the Eurovision Song Contest with "Waterloo", the first of a joint-record seven Swedish wins.
1974The first California Jam festival takes place at the Ontario Motor Speedway in Ontario, California. Co-headlined by Deep Purple and Emerson, Lake & Palmer. The festival set what were then records for the loudest amplification system ever installed, the highest paid attendance, and highest gross in history.
1984Members of Cameroon's Republican Guard unsuccessfully attempt to overthrow the government headed by Paul Biya.
1985Sudanese President Gaafar Nimeiry is ousted from power in a coup d'état led by Field Marshal Abdel Rahman Swar al-Dahab.
1994The Rwandan genocide begins when the aircraft carrying Rwandan president Juvénal Habyarimana and Burundian president Cyprien Ntaryamira is shot down.
1997In Greene County, Tennessee, the Lillelid murders occur.
2004Rolandas Paksas becomes the first president of Lithuania to be peacefully removed from office by impeachment.
2005Kurdish leader Jalal Talabani becomes Iraqi president; Shiite Arab Ibrahim al-Jaafari is named premier the next day.
2008The 2008 Egyptian general strike starts led by Egyptian workers later to be adopted by April 6 Youth Movement and Egyptian activists.
2009A 6.3 magnitude earthquake strikes near L'Aquila, Italy, killing 307.
2010Maoist rebels kill 76 CRPF officers in Dantewada district, India.
2011In San Fernando, Tamaulipas, Mexico, over 193 victims of Los Zetas were exhumed from several mass graves.
2012Azawad declares itself independent from the Republic of Mali.
2017U.S. military launches 59 Tomahawk cruise missiles at an air base in Syria. Russia describes the strikes as an "aggression", adding they significantly damage US-Russia ties.
2018A bus carrying the Humboldt Broncos junior ice hockey team collides with a semi-truck in Saskatchewan, Canada, killing 16 people and injuring 13 others.
2026The crew of Artemis II makes the first crewed circumlunar flight since Apollo 17 in 1972, returning humanity to the Moon's vicinity and breaking Apollo 13's record by ~4,000 miles as the furthest crewed spaceflight.
Nacimientos (265)
1135Maimonides, Jewish philosopher, Torah scholar, physician and astronomer (March 30 also proposed, died 1204)
1342Infanta Maria, Marchioness of Tortosa
1573Margaret of Brunswick-Lüneburg, German noble (died 1643)
1632Maria Leopoldine of Austria (died 1649)
1651André Dacier, French scholar and academic (died 1722)
1660Johann Kuhnau, German organist and composer (died 1722)
1664Arvid Horn, Swedish general and politician, Governor of Västerbotten County (died 1742)
1671Jean-Baptiste Rousseau, French poet and playwright (died 1741)
1672André Cardinal Destouches, French composer (died 1749)
1706Louis de Cahusac, French playwright and composer (died 1759)
1708Johann Georg Reutter, Austrian organist and composer (died 1772)
1725Pasquale Paoli, French soldier and politician (died 1807)
1726Gerard Majella, Italian saint (died 1755)
1741Nicolas Chamfort, French author and playwright (died 1794)
1766Wilhelm von Kobell, German painter and educator (died 1853)
1773James Mill, Scottish historian, economist, and philosopher (died 1836)
1787Celestina Cordero, Puerto Rican educator (died 1862)
1810Philip Henry Gosse, English biologist and academic (died 1888)
1812Alexander Herzen, Russian philosopher and author (died 1870)
1815Robert Volkmann, German organist, composer, and conductor (died 1883)
1818Aasmund Olavsson Vinje, Norwegian journalist and poet (died 1870)
1820Nadar, French photographer, journalist, and author (died 1910)
1823Joseph Medill, Canadian-American publisher and politician, 26th Mayor of Chicago (died 1899)
1862Albert Sidney Johnston, American general (born 1803)
1883Benjamin Wright Raymond, American merchant and politician, 3rd Mayor of Chicago (born 1801)
1886William Edward Forster, English businessman, philanthropist, and politician, Chief Secretary for Ireland (born 1818)
1899Alvan Wentworth Chapman, American physician and botanist (born 1809)
1906Alexander Kielland, Norwegian author, playwright, and politician, 6th County Governor of Møre og Romsdal (born 1849)
1913Somerset Lowry-Corry, 4th Earl Belmore (born 1835)
1927Florence Earle Coates, American poet (born 1850)
1935Edwin Arlington Robinson, American poet and playwright (born 1869)
1944Rose O'Neill, American cartoonist, illustrator, artist, and writer (born 1874)
1947Herbert Backe, German agronomist and politician (born 1896)
1950Louis Wilkins, American pole vaulter (born 1882)
1953Idris Davies, Welsh poet and author (born 1905)
1959Leo Aryeh Mayer, Polish-Israeli scholar and academic (born 1895)
1961Jules Bordet, Belgian microbiologist and immunologist, Nobel Prize laureate (born 1870)
1963Otto Struve, Ukrainian-American astronomer and academic (born 1897)
1970Maurice Stokes, American basketball player (born 1933)
1971Igor Stravinsky, Russian-American pianist, composer, and conductor (born 1882)
1974Willem Marinus Dudok, Dutch architect (born 1884)
1974Hudson Fysh, Australian pilot and businessman, co-founded Qantas Airways Limited (born 1895)
1977Kōichi Kido, Japanese politician, 13th Lord Keeper of the Privy Seal of Japan (born 1889)
1979Ivan Vasilyov, Bulgarian architect, designed the SS. Cyril and Methodius National Library (born 1893)
1983Jayanto Nath Chaudhuri, Indian General who served as the Chief of Army Staff of the Indian Army from 1962 to 1966 and the Military Governor of Hyderabad State from 1948 to 1949. (born 1908)
1992Isaac Asimov, American science fiction writer (born 1920)
1994Juvénal Habyarimana, Rwandan banker and politician, 3rd President of Rwanda (born 1937)
1994Cyprien Ntaryamira, Burundian politician, 5th President of Burundi (born 1955)
1995Ioannis Alevras, Greek banker and politician, President of Greece (born 1912)
1996Greer Garson, English-American actress (born 1904)
1998Norbert Schmitz, German footballer (born 1958)
1998Tammy Wynette, American singer-songwriter (born 1942)
1999Red Norvo, American vibraphone player and composer (born 1908)