495 BC – A newly constructed temple in honour of the god Mercury was dedicated in ancient Rome on the Circus Maximus, between the Aventine and Palatine hills. To spite the senate and the consuls, the people awarded the dedication to a senior military officer, Marcus Laetorius.
221 – Liu Bei, Chinese warlord, proclaims himself emperor of Shu Han, the successor of the Han dynasty.
392 – Emperor Valentinian II is assassinated while advancing into Gaul against the Frankish usurper Arbogast. He is found hanging in his residence at Vienne.
589 – King Authari marries Theodelinda, daughter of the Bavarian duke Garibald I. A Catholic, she has great influence among the Lombard nobility.
908 – The three-year-old Constantine VII, the son of Emperor Leo VI the Wise, is crowned as co-emperor of the Byzantine Empire by Patriarch Euthymius I at Constantinople.
1252 – Pope Innocent IV issues the papal bull ad extirpanda, which authorizes, but also limits, the torture of heretics in the Medieval Inquisition.
1525 – Insurgent peasants led by Anabaptist pastor Thomas Müntzer were defeated at the Battle of Frankenhausen, ending the German Peasants’ War in the Holy Roman Empire.
1536 – Anne Boleyn, Queen of England, stands trial in London on charges of treason, adultery and incest; she is condemned to death by a specially-selected jury.
1567 – Mary, Queen of Scots marries James Hepburn, 4th Earl of Bothwell, her third husband.
1618 – Johannes Kepler confirms his previously rejected discovery of the third law of planetary motion (he first discovered it on March 8 but soon rejected the idea after some initial calculations were made).
1648 – The Peace of Münster is ratified, by which Spain acknowledges Dutch sovereignty.
1718 – James Puckle, a London lawyer, patents the world’s first machine gun.
1776 – American Revolution: The Fifth Virginia Convention instructs its Continental Congress delegation to propose a resolution of independence from Great Britain, paving the way for the United States Declaration of Independence.
1791 – French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
1792 – War of the First Coalition: France declares war on Kingdom of Sardinia.
1793 – Diego Marín Aguilera flies a glider for “about 360 meters”, at a height of 5–6 meters, during one of the first attempted manned flights.
1796 – War of the First Coalition: Napoleon enters Milan in triumph.
1800 – King George III of the United Kingdom survives an assassination attempt by James Hadfield, who is later acquitted by reason of insanity.
1817 – Opening of the first private mental health hospital in the United States, the Asylum for the Relief of Persons Deprived of the Use of Their Reason (now Friends Hospital, Philadelphia, Pennsylvania).
1836 – Francis Baily observes “Baily’s beads” during an annular eclipse.
1849 – The Sicilian revolution of 1848 is finally extinguished.
1850 – The Bloody Island massacre takes place in Lake County, California, in which a large number of Pomo Indians are slaughtered by a regiment of the United States Cavalry.
1850 – The Arana–Southern Treaty is ratified, ending “the existing differences” between Great Britain and Argentina.
1851 – The first Australian gold rush is proclaimed, although the discovery had been made three months earlier.
1858 – Opening of the present Royal Opera House in Covent Garden, London.
1862 – President Abraham Lincoln signs a bill into law creating the United States Bureau of Agriculture. It is later renamed the United States Department of Agriculture.
1864 – American Civil War: Battle of New Market, Virginia: Students from the Virginia Military Institute fight alongside the Confederate army to force Union General Franz Sigel out of the Shenandoah Valley.
1867 – Canadian Bank of Commerce opens for business in Toronto, Ontario. The bank would later merge with Imperial Bank of Canada to become what is CIBC in 1961.
1869 – Women’s suffrage: In New York, Susan B. Anthony and Elizabeth Cady Stanton form the National Woman Suffrage Association.
1891 – Pope Leo XIII defends workers’ rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
1904 – Russo-Japanese War: The Russian minelayer Amur lays a minefield about 15 miles off Port Arthur and sinks Japan’s battleships Hatsuse, 15,000 tons, with 496 crew and Yashima.
1905 – Las Vegas is founded when 110 acres (0.45 km2), in what later would become downtown, are auctioned off.
1911 – In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an “unreasonable” monopoly under the Sherman Antitrust Act and orders the company to be broken up.
1911 – More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
1914 – During a poker game at the Gaiety Theatre in Galesburg, Illinois, comedian Art Fisher nicknames Chicko, Harpo, Groucho, and Gummo Marx.
1919 – The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
1919 – Greek occupation of Smyrna. During the occupation, the Greek army kills or wounds 350 Turks; those responsible are punished by Greek commander Aristides Stergiades.
1925 – Al-Insaniyyah, the first Arabic communist newspaper, is founded.
1928 – Walt Disney character Mickey Mouse premieres in his first cartoon, “Plane Crazy”.
1929 – A fire at the Cleveland Clinic in Cleveland, Ohio kills 123.
1932 – In an attempted coup d’état, the Prime Minister of Japan Inukai Tsuyoshi is assassinated.
1933 – All military aviation organizations within or under the control of the RLM of Germany were officially merged in a covert manner to form its Wehrmacht military’s air arm, the Luftwaffe.
1934 – Kārlis Ulmanis establishes an authoritarian government in Latvia.
1940 – USS Sailfish is recommissioned. It was originally the USS Squalus.
1940 – World War II: After fierce fighting, the poorly trained and equipped Dutch troops surrender to Germany, marking the beginning of five years of occupation.
1940 – Richard and Maurice McDonald open the first McDonald’s restaurant.
1941 – First flight of the Gloster E.28/39 the first British and Allied jet aircraft.
1941 – Joe DiMaggio begins a 56-game hitting streak.
1942 – World War II: In the United States, a bill creating the Women’s Army Auxiliary Corps (WAAC) is signed into law.
1943 – Joseph Stalin dissolves the Comintern (or Third International).
1945 – World War II: The Battle of Poljana, the final skirmish in Europe is fought near Prevalje, Slovenia.
1948 – Following the expiration of The British Mandate for Palestine, the Kingdom of Egypt, Transjordan, Lebanon, Syria, Iraq and Saudi Arabia invade Israel thus starting the 1948 Arab–Israeli War.
1957 – At Malden Island in the Pacific Ocean, Britain tests its first hydrogen bomb in Operation Grapple.
1958 – The Soviet Union launches Sputnik 3.
1960 – The Soviet Union launches Sputnik 4.
1963 – Project Mercury: The launch of the final Mercury mission, Mercury-Atlas 9 with astronaut Gordon Cooper on board. He becomes the first American to spend more than a day in space, and the last American to go into space alone.
1966 – After a policy dispute, Prime Minister Nguyễn Cao Kỳ of South Vietnam’s ruling junta launches a military attack on the forces of General Tôn Thất Đính, forcing him to abandon his command.
1969 – People’s Park: California Governor Ronald Reagan has an impromptu student park owned by the University of California at Berkeley fenced off from student anti-war protestors, sparking a riot.
1970 – President Richard Nixon appoints Anna Mae Hays and Elizabeth P. Hoisington the first female United States Army generals.
1970 – Philip Lafayette Gibbs and James Earl Green are killed at Jackson State University by police during student protests.
1972 – The Ryukyu Islands, under U.S. military governance since its conquest in 1945, reverts to Japanese control.
1972 – In Laurel, Maryland, Arthur Bremer shoots and paralyzes Alabama Governor George Wallace while he is campaigning to become president.
1974 – Ma’alot massacre: Members of the Democratic Front for the Liberation of Palestine attack and take hostages at an Israeli school; a total of 31 people are killed, including 22 schoolchildren.
1976 – Aeroflot Flight 1802 crashes in Viktorovka, Chernihiv Raion, killing all 52 people on board.
1987 – The Soviet Union launches the Polyus prototype orbital weapons platform. It fails to reach orbit.
1988 – Soviet–Afghan War: After more than eight years of fighting, the Soviet Army begins to withdraw 115,000 troops from Afghanistan.
1991 – Édith Cresson becomes France’s first female Prime Minister.
1997 – The United States government acknowledges the existence of the “Secret War” in Laos and dedicates the Laos Memorial in honor of Hmong and other “Secret War” veterans.
1997 – The Space Shuttle Atlantis launches on STS-84 to dock with the Russian space station Mir.
2004 – Arsenal F.C. go an entire league campaign unbeaten in the English Premier League, joining Preston North End F.C with the right to claim the title “The Invincibles”.
2008 – California becomes the second U.S. state after Massachusetts in 2004 to legalize same-sex marriage after the state’s own Supreme Court rules a previous ban unconstitutional.
2010 – Jessica Watson becomes the youngest person to sail, non-stop and unassisted around the world solo.
2013 – An upsurge in violence in Iraq leaves more than 389 people dead over three days.
Births on May 15
1397 – Sejong the Great, Korean king (d. 1450)
1531 – Maria of Austria, Duchess of Jülich-Cleves-Berg (d. 1581)
1565 – Hendrick de Keyser, Dutch sculptor and architect (d. 1621)
1567 – Claudio Monteverdi, Italian priest and composer (d. 1643)
1655 – Pope Innocent XIII (d. 1724)
1608 – René Goupil, French-American missionary and saint (d. 1642)
1633 – Sébastien Le Prestre de Vauban, French noble (d. 1707)
1645 – George Jeffreys, 1st Baron Jeffreys, British judge (d. 1689)
1689 – Lady Mary Wortley Montagu, English writer (d. 1762)
1720 – Maximilian Hell, Hungarian priest and astronomer (d. 1792)
1749 – Levi Lincoln Sr., American lawyer and politician, 4th United States Attorney General (d. 1820)
1759 – Maria Theresia von Paradis, Austrian pianist and composer (d. 1824)
1770 – Ezekiel Hart, Canadian businessman and politician (d. 1843)
1773 – Klemens von Metternich, German-Austrian politician, 1st State Chancellor of the Austrian Empire (d. 1859)
1786 – Dimitris Plapoutas, Greek general and politician (d. 1864)
1803 – Juan Almonte, son of José María Morelos, was a Mexican soldier and diplomat who served as a regent in the Second Mexican Empire (1863-1864) (d. 1869)
1805 – Samuel Carter, Early English railway solicitor and MP (d. 1878)
1808 – Michael William Balfe, Irish composer and conductor (d. 1870)
1817 – Debendranath Tagore, Indian philosopher and author (d. 1905)
1841 – Clarence Dutton, American commander and geologist (d. 1912)
1845 – Élie Metchnikoff, Russian zoologist (d. 1916)
1848 – Viktor Vasnetsov, Russian painter and illustrator (d. 1926)
1854 – Ioannis Psycharis, Ukrainian-French philologist and author (d. 1929)
1856 – L. Frank Baum, American novelist (d. 1919)
1856 – Matthias Zurbriggen, Swiss mountaineer (d. 1917)
1857 – Williamina Fleming, Scottish-American astronomer and academic (d. 1911)
1859 – Pierre Curie, French physicist and academic, Nobel Prize laureate (d. 1906)
1862 – Arthur Schnitzler, Austrian author and playwright (d. 1931)
1863 – Frank Hornby, English businessman and politician, invented Meccano (d. 1936)
1869 – Paul Probst, Swiss target shooter (d. 1945)
1869 – John Storey, Australian politician, 20th Premier of New South Wales (d. 1921)
1882 – Walter White, Scottish international footballer (d. 1950)
1890 – Katherine Anne Porter, American short story writer, novelist, and essayist (d. 1980)
1891 – Mikhail Bulgakov, Russian novelist and playwright (d. 1940)
1891 – Fritz Feigl, Austrian-Brazilian chemist and academic (d. 1971)
1892 – Charles E. Rosendahl, American admiral (d. 1977)
1892 – Jimmy Wilde, Welsh boxer (d. 1969)
1893 – José Nepomuceno, Filipino filmmaker, founder of Philippine cinema (d. 1959)
1894 – Feg Murray, American hurdler and cartoonist (d. 1973)
1895 – Prescott Bush, American captain, banker, and politician (d. 1972)
1895 – William D. Byron, American lieutenant and politician (d. 1941)
1898 – Arletty, French model, actress, and singer (d. 1992)
1899 – Jean Étienne Valluy, French general (d. 1970)
1900 – Ida Rhodes, American mathematician, pioneer in computer programming (d. 1986)
1901 – Xavier Herbert, Australian author (d. 1984)
1901 – Luis Monti, Argentinian-Italian footballer and manager (d. 1983)
1902 – Richard J. Daley, American lawyer and politician, 48th Mayor of Chicago (d. 1976)
1902 – Sigizmund Levanevsky, Soviet aircraft pilot of Polish origin (d. 1937)
1903 – Maria Reiche, German mathematician and archaeologist (d. 1998)
1904 – Clifton Fadiman, American game show host and author (d. 1999)
1905 – Joseph Cotten, American actor (d. 1994)
1905 – Albert Dubout, French cartoonist, illustrator, painter, and sculptor (d. 1976)
1905 – Abraham Zapruder, American businessman and amateur photographer, filmed the Zapruder film (d. 1970)
1907 – Sukhdev Thapar, Indian activist (d. 1931)
1909 – James Mason, English actor, producer, and screenwriter (d. 1984)
1909 – Clara Solovera, Chilean singer-songwriter (d. 1992)
1910 – Constance Cummings, British-based American actress (d. 2005)
1911 – Max Frisch, Swiss playwright and novelist (d. 1991)
1911 – Herta Oberheuser, German physician (d. 1978)
1912 – Arthur Berger, American composer and educator (d. 2003)
1914 – Turk Broda, Canadian ice hockey player and coach (d. 1972)
1914 – Angus MacLean, Canadian farmer and politician, 25th Premier of Prince Edward Island (d. 2000)
1914 – Norrie Paramor, English composer, producer, and conductor (d. 1979)
1915 – Hilda Bernstein, English-South African author and activist (d. 2006)
1915 – Paul Samuelson, American economist and academic, Nobel Prize laureate (d. 2009)
1915 – Henrik Sandberg, Danish production manager and producer (d. 1993)
1916 – Vera Gebuhr, Danish actress (d. 2014)
1918 – Eddy Arnold, American singer-songwriter, guitarist, and actor (d. 2008)
1918 – Arthur Jackson, American lieutenant and target shooter (d. 2015)
1918 – Joseph Wiseman, Canadian-American actor (d. 2009)
1920 – Michel Audiard, French director and screenwriter (d. 1985)
1922 – Sigurd Ottovich Schmidt, Russian historian and ethnographer (d. 2013)
1922 – Jakucho Setouchi, Japanese nun and author
1923 – Richard Avedon, American sailor and photographer (d. 2004)
1923 – John Lanchbery, English-Australian composer and conductor (d. 2003)
1924 – Maria Koepcke, German-Peruvian ornithologist and zoologist (d. 1971)
1925 – Andrei Eshpai, Russian pianist and composer (d. 2015)
1925 – Mary F. Lyon, English geneticist and biologist (d. 2014)
1925 – Carl Sanders, American soldier, pilot, and politician, 74th Governor of Georgia (d. 2014)
1925 – Roy Stewart, Jamaican-English actor and stuntman (d. 2008)
1926 – Clermont Pépin, Canadian pianist, composer, and educator (d. 2006)
1926 – Anthony Shaffer, English author, playwright, and screenwriter (d. 2001)
1926 – Peter Shaffer, English playwright and screenwriter (d. 2016)
1930 – Jasper Johns, American painter and sculptor
1931 – Ken Venturi, American golfer and sportscaster (d. 2013)
1935 – Don Bragg, American pole vaulter
1935 – Ted Dexter, Italian-English cricketer
1935 – Utah Phillips, American singer-songwriter and guitarist (d. 2008)
1935 – Akihiro Miwa, Japanese singer, actor, director, composer, author and drag queen
1936 – Anna Maria Alberghetti, Italian-American actress and singer
1936 – Mart Laga, Estonian basketball player (d. 1977)
1936 – Ralph Steadman, English painter and illustrator
1936 – Paul Zindel, American playwright and novelist (d. 2003)
1937 – Madeleine Albright, Czech-American politician and diplomat, 64th United States Secretary of State
1937 – Karin Krog, Norwegian singer
1937 – Trini Lopez, American singer, guitarist, and actor
1938 – Mireille Darc, French actress, director, and screenwriter (d. 2017)
1938 – Nancy Garden, American author (d. 2014)
1939 – Dorothy Shirley, English high jumper and educator
1940 – Roger Ailes, American businessman (d. 2017)
1940 – Lainie Kazan, American actress and singer
1940 – Don Nelson, American basketball player and coach
1941 – Jaxon, American illustrator and publisher, co-founded the Rip Off Press (d. 2006)
1942 – Lois Johnson, American singer-songwriter (d. 2014)
1942 – Jusuf Kalla, Indonesian businessman and politician, 10th Vice President of Indonesia
1942 – Doug Lowe, Australian politician, 35th Premier of Tasmania
1942 – K. T. Oslin, American singer-songwriter and actress
1943 – Paul Bégin, Canadian lawyer and politician
1943 – Freddie Perren, American songwriter, producer, and conductor (d. 2004)
1944 – Bill Alter, American police officer and politician
1944 – Ulrich Beck, German sociologist and academic (d. 2015)
1945 – Michael Dexter, English hematologist and academic
1945 – Jerry Quarry, American boxer (d. 1999)
1946 – Thadeus Nguyễn Văn Lý, Vietnamese priest and activist
1947 – Graeham Goble, Australian singer-songwriter, guitarist and producer
1948 – Kate Bornstein, American author, playwright, performance artist, and gender theorist
1948 – Yutaka Enatsu, Japanese baseball player
1948 – Brian Eno, English singer-songwriter, keyboard player, and producer
1948 – Kathleen Sebelius, American politician, 44th Governor of Kansas
1949 – Frank L. Culbertson Jr., American captain, pilot, and astronaut
1949 – Robert S.J. Sparks, English geologist and academic
1950 – Jim Bacon, Australian politician, 41st Premier of Tasmania (d. 2004)
1950 – Jim Simons, American golfer (d. 2005)
1951 – Dennis Frederiksen, American singer-songwriter (d. 2014)
1951 – Chris Ham, English political scientist and academic
1951 – Frank Wilczek, American mathematician and physicist, Nobel Prize laureate
1952 – Chazz Palminteri, American actor, director, producer, and screenwriter
1953 – George Brett, American baseball player and coach
1953 – Athene Donald, English physicist and academic
1953 – Mike Oldfield, English-Irish singer-songwriter, guitarist, and producer
1954 – Diana Liverman, English-American geographer and academic
1954 – Caroline Thomson, English journalist and broadcaster
1955 – Mohamed Brahmi, Tunisian politician (d. 2013)
1955 – Lia Vissi, Cypriot singer-songwriter and politician
1956 – Andreas Loverdos, Greek lawyer and politician, Greek Minister of Labour
1956 – Dan Patrick, American television anchor and sportscaster
1956 – Kevin Greenaugh, American nuclear engineer
1957 – Meg Gardiner, American-English author and academic
1957 – Juan José Ibarretxe, Spanish politician
1957 – Kevin Von Erich, American football player and wrestler
1958 – Jason Graae, American musical theater actor
1958 – Ruth Marcus, American journalist
1958 – Ron Simmons, American football player and wrestler
1959 – Khaosai Galaxy, Thai boxer and politician
1959 – Luis Pérez-Sala, Spanish race car driver
1959 – Beverly Jo Scott, American-Belgian singer-songwriter
1960 – Rhonda Burchmore, Australian actress, singer, and dancer
1960 – Rob Bowman, American director and producer
1960 – R. Kuhaneswaran, Sri Lankan politician
1960 – Rimas Kurtinaitis, Lithuanian basketball player and coach
1961 – Giselle Fernández, Mexican-American television journalist.
1962 – Lisa Curry, Australian swimmer
1963 – Gavin Nebbeling, South African footballer
1964 – Lars Løkke Rasmussen, Danish lawyer and politician, 40th Prime Minister of Denmark
1965 – André Abujamra, Brazilian singer-songwriter and guitarist
1965 – Scott Tronc, Australian rugby league player
1966 – Jiří Němec, Czech footballer
1967 – Simen Agdestein, Norwegian chess grandmaster and football player
1967 – Laura Hillenbrand, American journalist and author
1967 – John Smoltz, American baseball player and sportscaster
1967 – Madhuri Dixit, Indian actress
1968 – Cecilia Malmström, Swedish academic and politician, 15th European Commissioner for Trade
1968 – Sophie Raworth, English journalist and broadcaster
1969 – Hideki Irabu, Japanese-American baseball player (d. 2011)
1969 – Emmitt Smith, American football player and sportscaster
1970 – Frank de Boer, Dutch footballer and manager
1970 – Ronald de Boer, Dutch footballer and manager
1970 – Desmond Howard, American football player and sportscaster
1970 – Alison Jackson, English photographer, director, and screenwriter
1970 – Rod Smith, American football player
1970 – Ben Wallace, English captain and politician
1971 – Karin Lušnic, Slovenian tennis player
1972 – Danny Alexander, Scottish politician, Secretary of State for Scotland
1972 – David Charvet, French actor and singer
1974 – Vasilis Kikilias, Greek basketball player and politician
1974 – Matthew Sadler, English chess player and author
1974 – Marko Tredup, German footballer and manager
1974 – Ahmet Zappa, American musician and writer
1975 – Ray Lewis, American football player and sportscaster
1975 – Ales Michalevic, Belarusian lawyer and politician
1976 – Torraye Braggs, American basketball player
1976 – Mark Kennedy, Irish footballer
1976 – Jacek Krzynówek, Polish footballer
1976 – Ryan Leaf, American football player and coach
1976 – Anže Logar, Slovenian politician
1976 – Tyler Walker, American baseball player
1978 – Amy Chow, American gymnast and pediatrician
1978 – Dwayne De Rosario, Canadian soccer player
1978 – Edu, Brazilian footballer
1978 – David Krumholtz, American actor
1979 – Adolfo Bautista, Mexican footballer
1979 – Daniel Caines, English sprinter
1979 – Chris Masoe, New Zealand rugby player
1979 – Ryan Max Riley, American skier
1979 – Robert Royal, American football player
1979 – Dominic Scott, Irish guitarist
1980 – Josh Beckett, American baseball player
1981 – Patrice Evra, French footballer
1981 – Paul Konchesky, English international footballer
1981 – Justin Morneau, Canadian baseball player
1981 – Zara Phillips, English equestrian
1981 – Jamie-Lynn Sigler, American actress and singer
1982 – Veronica Campbell-Brown, Jamaican sprinter
1982 – Segundo Castillo, Ecuadorian footballer
1982 – Rafael Pérez, Dominican baseball player
1982 – Layal Abboud, Lebanese singer
1984 – Jeff Deslauriers, Canadian ice hockey player
1984 – Sérgio Jimenez, Brazilian race car driver
1984 – Samantha Noble, Australian actress
1984 – Beau Scott, Australian rugby league player
1984 – Mr Probz, Dutch singer, songwriter, rapper, actor and record producer
1985 – Cristiane, Brazilian footballer
1985 – Tania Cagnotto, Italian diver
1985 – Laura Harvey, English football coach
1985 – Tathagata Mukherjee, Indian actor
1985 – Denis Onyango, Ugandan goalkeeper
1985 – Justine Robbeson, South African javelin thrower
1986 – Thomas Brown, American football player
1986 – Matías Fernández, Chilean footballer
1986 – Adam Moffat, Scottish footballer
1987 – David Adams, American baseball player
1987 – Michael Brantley, American baseball player
1987 – Brian Dozier, American baseball player
1987 – Mark Fayne, American ice hockey player
1987 – Ersan İlyasova, Turkish basketball player
1987 – Leonardo Mayer, Argentinian tennis player
1987 – Andy Murray, Scottish tennis player
1988 – Indrek Kajupank, Estonian basketball player
1988 – Scott Laird, English footballer
1989 – Mapou Yanga-Mbiwa, French footballer
1990 – Jordan Eberle, Canadian ice hockey player
1990 – Lee Jong-hyun, Korean guitarist
1990 – Stella Maxwell, New Zealand model
1993 – Jeremy Hawkins, New Zealand rugby league player
1993 – Tomáš Kalas, Czech international footballer
1996 – Birdy, English singer-songwriter
1997 – Ousmane Dembélé, French footballer
Deaths on May 15
392 – Valentinian II, Roman emperor (b. 371)
558 – Hilary of Galeata, Christian monk (b. 476)
884 – Narinus I, pope of the Catholic Church (b. 830)
913 – Hatto I, German archbishop (b. 850)
926 – Zhuang Zong, Chinese emperor (b. 885)
973 – Byrhthelm, bishop of Wells
1036 – Go-Ichijō, emperor of Japan (b. 1008)
1157 – Yuri Dolgorukiy, Grand Prince of Kiev (b. 1099)
1175 – Mleh, prince of Armenia
1174 – Nur ad-Din, Seljuk emir of Syria (b. 1118)
1268 – Peter II, count of Savoy (b. 1203)
1461 – Domenico Veneziano, Italian painter (b. c. 1410)
1464 – Henry Beaufort, 3rd Duke of Somerset (b. 1436)
1470 – Charles VIII, king of Sweden (b. 1409)
1585 – Niwa Nagahide, Japanese samurai (b. 1535)
1609 – Giovanni Croce, Italian composer and educator (b. 1557)
1615 – Henry Bromley, English politician (b. 1560)
1634 – Hendrick Avercamp, Dutch painter (b. 1585)
1698 – Marie Champmeslé, French actress (b. 1642)
1699 – Sir Edward Petre, 3rd Baronet, English politician (b. 1631)
1700 – John Hale, American minister (b. 1636)
1740 – Ephraim Chambers, English publisher (b. 1680)
1773 – Alban Butler, English priest and hagiographer (b. 1710)
1845 – Braulio Carrillo Colina, Costa Rican lawyer and politician, Head of State of Costa Rica (b. 1800)
1879 – Gottfried Semper, German architect and educator, designed the Semper Opera House (b. 1803)
1886 – Emily Dickinson, American poet and author (b. 1830)
1914 – Ida Freund, Austrian-born chemist and educator (b. 1863)
1919 – Hasan Tahsin, Turkish journalist (b. 1888)
1924 – Paul-Henri-Benjamin d’Estournelles de Constant, French diplomat and politician, Nobel Prize laureate (b. 1852)
1926 – Joseph James Fletcher, Australian biologist (b. 1850)
1928 – Umegatani Tōtarō I, Japanese sumo wrestler, the 15th Yokozuna (b. 1845)
1935 – Kazimir Malevich, Ukrainian-Russian painter and theoretician (b. 1878)
1937 – Philip Snowden, 1st Viscount Snowden, English politician, Chancellor of the Exchequer (b. 1864)
1945 – Kenneth J. Alford, English soldier, bandmaster, and composer (b. 1881)
1945 – Charles Williams, English author, poet, and critic (b. 1886)
1948 – Edward J. Flanagan, Irish-American priest, founded Boys Town (b. 1886)
1954 – William March, American soldier and author (b. 1893)
1956 – Austin Osman Spare, English painter and magician (b. 1886)
1957 – Keith Andrews, American race car driver (b. 1920)
1957 – Dick Irvin, Canadian ice hockey player and coach (b. 1892)
1963 – John Aglionby, English-born Bishop of Accra and soldier (b. 1884)
1964 – Vladko Maček, Croatian lawyer and politician (b. 1879)
1965 – Pio Pion, Italian businessman (b. 1887)
1967 – Edward Hopper, American painter (b. 1882)
1967 – Italo Mus, Italian painter (b. 1892)
1969 – Joe Malone, Canadian ice hockey player (b. 1890)
1971 – Tyrone Guthrie, English director, producer, and playwright (b. 1900)
1978 – Robert Menzies, Australian lawyer and politician, 12th Prime Minister of Australia (b. 1894)
1980 – Gordon Prange, American historian and author (b. 1910)
1982 – Gordon Smiley, American race car driver (b. 1946)
1984 – Francis Schaeffer, American pastor, theologian, and philosopher (b. 1912)
1985 – Jackie Curtis, American actress and writer (b. 1947)
1986 – Elio de Angelis, Italian race car driver (b. 1958)
1986 – Theodore H. White, American historian, journalist, and author (b. 1915)
1989 – Johnny Green, American composer and conductor (b. 1908)
1989 – Luc Lacourcière, Canadian ethnographer and author (b. 1910)
1991 – Andreas Floer, German mathematician and academic (b. 1956)
2010 – Loris Kessel, Swiss race car driver (b. 1950)
2012 – Carlos Fuentes, Mexican novelist and essayist (b. 1928)
2012 – Arno Lustiger, German historian and author (b. 1924)
2012 – Zakaria Mohieddin, Egyptian soldier and politician, 33rd Prime Minister of Egypt (b. 1918)
2013 – Henrique Rosa, Bissau-Guinean politician, President of Guinea-Bissau (b. 1946)
2014 – Jean-Luc Dehaene, French-Belgian politician, 63rd Prime Minister of Belgium (b. 1940)
2014 – Noribumi Suzuki, Japanese director and screenwriter (b. 1933)
2015 – Elisabeth Bing, German-American physical therapist and author (b. 1914)
2015 – Jackie Brookner, American sculptor and educator (b. 1945)
2015 – Garo Yepremian, Cypriot-American football player (b. 1944)
2020 – Fred Willard, American actor, comedian, and writer (b. 1933)[19]
Holidays and observances on May 15
Aoi Matsuri (Kyoto)
Army Day (Slovenia)
Christian feast day:
Achillius of Larissa
Athanasius of Alexandria (Coptic Church)
Dymphna
Hallvard Vebjørnsson (Roman Catholic Church)
Hesychius of Cazorla
Hilary of Galeata
Isidore the Laborer, celebrated with festivals in various countries, the beginning of bullfighting season in Madrid.
Jean-Baptiste de La Salle (Roman Catholic Church)
Peter, Andrew, Paul, and Denise (Roman Catholic Church)
Reticius (Roman Catholic Church)
Sophia of Rome (Roman Catholic church)
May 15 (Eastern Orthodox liturgics)
Constituent Assembly Day (Lithuania)
Earliest date on which Armed Forces Day (United States) can fall, while May 21 is the latest; celebrated on the third Saturday of May.
Independence Day (Paraguay), celebrates the independence of Paraguay from Spain in 1811. Celebrations for the anniversary of the independence begin on Flag Day, May 14.
International Conscientious Objectors Day
International Day of Families (International)
La Corsa dei Ceri begins on the eve of the feast day of Saint Ubaldo. (Gubbio)
