Eventos el May 15 73
Año 221
Liu Bei, Chinese warlord, proclaims himself emperor of Shu Han, the successor of the Han dynasty.
Año 392
Emperor Valentinian II is assassinated while advancing into Gaul against the Frankish usurper Arbogast. He is found hanging in his residence at Vienne.
Año 589
King Authari marries Theodelinda, daughter of the Bavarian duke Garibald I. A Catholic, she has great influence among the Lombard nobility.
Año 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.
Año 1252
Pope Innocent IV issues the papal bull ad extirpanda, which authorizes, but also limits, the torture of heretics in the Medieval Inquisition.
Año 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.
Año 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.
Año 1567
Mary, Queen of Scots marries James Hepburn, 4th Earl of Bothwell, her third husband.
Año 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).
Año 1730
Robert Walpole effectively became the first Prime Minister of the United Kingdom.
Año 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.
Año 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.
Año 1800
King George III of the United Kingdom survives an assassination attempt by James Hadfield, who is later acquitted by reason of insanity.
Año 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).
Año 1848
Serfdom is abolished in the Habsburg Galicia, as a result of the 1848 revolutions. The rest of monarchy followed later in the year.
Año 1849
Troops of the Two Sicilies take Palermo and crush the republican government of Sicily.
Año 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.
Año 1850
The Arana-Southern Treaty is ratified, ending "the existing differences" between Great Britain and Argentina.
Año 1851
The first Australian gold rush is proclaimed, although the discovery had been made three months earlier.
Año 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.
Año 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.
Año 1867
Canadian Bank of Commerce opens for business in Toronto. The bank would later merge with Imperial Bank of Canada to become what is CIBC in 1961.
Año 1869
Women's suffrage: In New York, Susan B. Anthony and Elizabeth Cady Stanton form the National Woman Suffrage Association.
Año 1891
Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
Año 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.
Año 1905
Las Vegas is founded when 110 acres (0.45 km2), in what later would become downtown, are auctioned off.
Año 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.
Año 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.
Año 1919
The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
Año 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.
Año 1928
Walt Disney character Mickey Mouse premieres in his first cartoon, "Plane Crazy".
Año 1932
In an attempted coup d'état, the Prime Minister of Japan Inukai Tsuyoshi is assassinated.
Año 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.
Año 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.
Año 1942
World War II: In the United States, a bill creating the Women's Army Auxiliary Corps (WAAC) is signed into law.
Año 1945
World War II: The Battle of Poljana, the final skirmish in Europe is fought near Prevalje, Slovenia.
Año 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.
Año 1957
At Malden Island in the Pacific Ocean, Britain tests its first hydrogen bomb in Operation Grapple.
Año 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.
Año 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.
Año 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.
Año 1970
President Richard Nixon appoints Anna Mae Hays and Elizabeth P. Hoisington the first female United States Army generals.
Año 1970
Philip Lafayette Gibbs and James Earl Green are killed at Jackson State University by police during student protests.
Año 1972
Ryukyu Islands, under U.S. military governance since its conquest in 1945, hand over to Japanese control.
Año 1972
In Laurel, Maryland, Arthur Bremer shoots and paralyzes Alabama Governor George Wallace while he is campaigning to become President.
Año 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.
Año 1987
The Soviet Union launches the Polyus prototype orbital weapons platform. It fails to reach orbit.
Año 1988
Soviet war in Afghanistan: After more than eight years of fighting, the Soviet Army begins to withdraw 115,000 troops from Afghanistan.
Año 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.
Año 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
Año 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.
Año 2010
Jessica Watson becomes the youngest person to sail, non-stop and unassisted around the world solo.
Año ?
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.