May 11 is the 131st day of the year (132nd day in a leap year) in the Gregorian calendar. This is followed by 234 days until the end of the year.
330 - Byzantion is now called Constantinople.
868 - The Diamond Sutra, the oldest printed Chinese book, is produced.
1502 - Christopher Columbus sets sail for his fourth and final voyage to the West Indies.
1820 - Launch of HMS Beagle.
1950 - Firedamp explosion in the Borinage: 130 killed.
1960 - Nazi leader Adolf Eichmann is arrested in Argentina by the Israeli secret service Mossad.
1973 - Queen Juliana swears in the new Den Uyl cabinet.
1984 - Eight teens are killed in a fire at the Haunted Castle attraction at Six Flags Great Adventure amusement park.
1993 - Iraq reopens its border with Jordan after a six-day closure of this key gateway to the outside world over the withdrawal of old dinar notes.
1996 - A DC-9 operated by American low-cost fighter ValuJet Airlines crashes near Miami, USA, in a wetland area of Everglades National Park, Florida, USA, killing 109.
2006 - In Antwerp, Hans Van Themsche kills a young child of 2 years and her Malian nanny and also injures a Turkish woman.
2012 - After 65 years, Radio Netherlands Worldwide says goodbye to Dutch-language broadcasts.
2020 - Five experienced surfers die in the sea near Scheveningen. Too strong winds and too much sea foam were fatal to them.
1951 - The Efteling Nature Park Foundation opens the Efteling.
Art and culture
1927 - The Academy of Motion Picture Arts and Sciences, the "Academy" that awards the Oscars, is founded.
1995 - On the occasion of the film's centenary, well-known directors and producers from around the world nominate Orson Welles' Citizen Kane as the best film of the century.
2008 - The Colombian newspaper El Espectador appears daily again.
1857 - Indian rebels capture Delhi from the British
1940 - The German invaders reach the Albert Canal.
1940 - A German bombing raid on Amsterdam kills 44 and wounds 79.
1995 - Russian units carry out heavy bombing raids on Chechen rebel positions in the south of the country.
1812 – British Prime Minister Spencer Perceval is gunned down in the hall of the British House of Commons by bankrupt merchant John Bellingham.
1949 - Siam changes its name to Thailand.
1949 – The United Nations General Assembly grants United Nations membership to Israel with Resolution 273.
1995 - Founding of the Finnish political party True Finns.
2010 - British Prime Minister Gordon Brown tenders his resignation to Queen Elizabeth II, David Cameron of the Conservative Party takes over as Prime Minister the same day.
1670 - Coronation of Pope Clement X in Rome.
1888 - Elevation of the Missio sui iuris Belgian Congo to Apostolic Vicariate Léopoldville.
1985 - Pope John Paul II arrives in the Netherlands for an official visit. Riots break out in Utrecht and the Mobile Unit tries to keep the demonstrators apart.
1949 - The Brazil national football team wins the Copa América for the third time by beating Paraguay 7-0 in the final.
1980 - FC Utrecht draws 2-2 against PEC Zwolle in the last round of play and qualifies for European football for the first time in history.
1985 - At a football game between Bradford City and Lincoln City, 56 people are killed by fire in the stands.
1986 - Opening of the Estadio Metropolitano Roberto Meléndez in Barranquilla, Colombia.
1988 - KV Mechelen wins the European Cup for cup winners in Strasbourg by beating Ajax 1-0 in the final through a goal by Piet den Boer.
1991 - In Brussels, defending champions Netherlands finish fourth at the European Women's Hockey Championships after a 3-2 defeat in the consolation final against the Soviet Union