- 823 – Lothair I is crowned King of Italy by Pope Paschal I.
- 919 – The second Fatimid invasion of Egypt begins, when the Fatimid heir-apparent, al-Qa’im bi-Amr Allah, sets out from Raqqada at the head of his army.[1]
- 1081 – Alexios I Komnenos is crowned Byzantine emperor at Constantinople, bringing the Komnenian dynasty to full power.
- 1242 – During the Battle on the Ice of Lake Peipus, Russian forces, led by Alexander Nevsky, rebuff an invasion attempt by the Teutonic Knights.
- 1536 – Royal Entry of Charles V into Rome: The last Roman triumph.
- 1566 – Two hundred Dutch noblemen, led by Hendrick van Brederode, force themselves into the presence of Margaret of Parma and present the Petition of Compromise, denouncing the Spanish Inquisition in the Seventeen Provinces.
- 1609 – Daimyō (Lord) Shimazu Tadatsune of the Satsuma Domain in southern Kyūshū, Japan, completes his successful invasion of the Ryūkyū Kingdom in Okinawa.
- 1614 – In Virginia, Native American Pocahontas marries English colonist John Rolfe.
- 1621 – The Mayflower sets sail from Plymouth, Massachusetts on a return trip to England.
- 1710 – The Statute of Anne receives the royal assent establishing the Copyright law of the United Kingdom.
- 1722 – The Dutch explorer Jacob Roggeveen discovers Easter Island.
- 1792 – United States President George Washington exercises his authority to veto a bill, the first time this power is used in the United States.
- 1795 – Peace of Basel between France and Prussia is made.
- 1818 – In the Battle of Maipú, Chile‘s independence movement, led by Bernardo O’Higgins and José de San Martín, win a decisive victory over Spain, leaving 2,000 Spaniards and 1,000 Chilean patriots dead.
- 1862 – American Civil War: The Battle of Yorktown begins.
- 1879 – Chile declares war on Bolivia and Peru, starting the War of the Pacific.
- 1900 – Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
- 1902 – A stand box collapses at Ibrox Park (now Ibrox Stadium) in Glasgow, Scotland, which led to the deaths of 25 and injuries to more than 500 supporters during an international association football match between Scotland and England.[2]
- 1904 – The first international rugby league match is played between England and an Other Nationalities team (Welsh and Scottish players) in Central Park, Wigan, England.
- 1910 – The Transandine Railway connecting Chile and Argentina is inaugurated.[3]
- 1915 – Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
- 1922 – The American Birth Control League, forerunner of Planned Parenthood, is incorporated.
- 1932 – Dominion of Newfoundland: Ten thousand rioters seize the Colonial Building leading to the end of self-government.
- 1933 – U.S. President Franklin D. Roosevelt signs two executive orders: 6101 to establish the Civilian Conservation Corps, and 6102 “forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates” by U.S. citizens.
- 1933 – Andorran Revolution: The Young Andorrans occupy the Casa de la Vall and force the government to hold democratic elections with universal male suffrage.[4]
- 1936 – Tupelo–Gainesville tornado outbreak: An F5 tornado kills 233 in Tupelo, Mississippi.
- 1942 – World War II: The Imperial Japanese Navy launches a carrier-based air attack on Colombo, Ceylon during the Indian Ocean raid. Port and civilian facilities are damaged and the Royal Navy cruisers HMS Cornwall and HMS Dorsetshire are sunk southwest of the island.
- 1943 – World War II: American bomber aircraft accidentally cause more than 900 civilian deaths, including 209 children, and 1,300 wounded among the civilian population of the Belgian town of Mortsel. Their target was the Erla factory one kilometer from the residential area hit.
- 1944 – World War II: Two hundred seventy inhabitants of the Greek town of Kleisoura are executed by the Germans.
- 1945 – Cold War: Yugoslav leader Josip Broz Tito signs an agreement with the Soviet Union to allow “temporary entry of Soviet troops into Yugoslav territory”.
- 1946 – Soviet troops end their year-long occupation of the Danish island of Bornholm.
- 1946 – A Fleet Air Arm Vickers Wellington crashes into a residential area in Rabat, Malta during a training exercise, killing all 4 crew members and 16 civilians on the ground.[5][6]
- 1949 – A fire in a hospital in Effingham, Illinois, kills 77 people and leads to nationwide fire code improvements in the United States.
- 1951 – Cold War: Ethel and Julius Rosenberg are sentenced to death for spying for the Soviet Union.
- 1956 – Cuban Revolution: Fidel Castro declares himself at war with Cuban President Fulgencio Batista.
- 1956 – In Sri Lanka, the Mahajana Eksath Peramuna win the general elections in a landslide and S. W. R. D. Bandaranaike is sworn in as the Prime Minister of Ceylon.
- 1957 – In India, Communists win the first elections in united Kerala and E. M. S. Namboodiripad is sworn in as the first Chief Minister.
- 1958 – Ripple Rock, an underwater threat to navigation in the Seymour Narrows in Canada is destroyed in one of the largest non-nuclear controlled explosions of the time.
- 1969 – Vietnam War: Massive antiwar demonstrations occur in many U.S. cities.
- 1971 – In Sri Lanka, Janatha Vimukthi Peramuna launches a revolt against the United Front government of Sirimavo Bandaranaike.
- 1976 – In China, the April Fifth Movement leads to the Tiananmen Incident.
- 1977 – The US Supreme Court rules that congressional legislation that diminished the size of the Sioux people’s reservation thereby destroyed the tribe’s jurisdictional authority over the area in Rosebud Sioux Tribe v. Kneip.[7]
- 1986 – Three people are killed in the bombing of the La Belle discotheque in West Berlin, Germany.
- 1991 – An ASA EMB 120 crashes in Brunswick, Georgia, killing all 23 aboard including Sen. John Tower and astronaut Sonny Carter.
- 1992 – Alberto Fujimori, president of Peru, dissolves the Peruvian congress by military force.
- 1992 – Peace protesters Suada Dilberovic and Olga Sučić are killed on the Vrbanja Bridge in Sarajevo, becoming the first casualties of the Bosnian War.
- 1998 – In Japan, the Akashi Kaikyō Bridge opens to traffic, becoming the longest bridge span in the world.
- 1999 – Two Libyans suspected of bringing down Pan Am Flight 103 in 1988 are handed over for eventual trial in the Netherlands.
- 2000 – UEFA Cup semi-final violence: Four Galatasaray fans are arrested for the stabbings to death of two Leeds United fans.[8][9]
- 2009 – North Korea launches its controversial Kwangmyŏngsŏng-2 rocket. The satellite passed over mainland Japan, which prompted an immediate reaction from the United Nations Security Council, as well as participating states of Six-party talks.
- 2010 – Twenty-nine coal miners are killed in an explosion at the Upper Big Branch Mine in West Virginia.
-Source: wikipedia