Today in History : April 11

• 491 – Flavius Anastasius becomes Byzantine Emperor, with the name of Anastasius I.
• 1079 – Bishop Stanislaus of Kraków is executed by order of Bolesław II of Poland.
• 1241 – Batu Khan defeats Béla IV of Hungary at the Battle of Muhi.
• 1512 – War of the League of Cambrai: French forces led by Gaston de Foix win the Battle of Ravenna.
• 1544 – French forces defeat a Spanish army at the Battle of Ceresole.
• 1689 – William III and Mary II are crowned as joint sovereigns of Britain.
• 1713 – War of the Spanish Succession (Queen Anne's War): Treaty of Utrecht.
• 1727 – Premiere of Johann Sebastian Bach's St Matthew Passion BWV 244b at the St. Thomas Church, Leipzig
• 1809 – Battle of the Basque Roads Naval battle fought between France and the United Kingdom
• 1814 – The Treaty of Fontainebleau ends the War of the Sixth Coalition against Napoleon Bonaparte, and forces him to abdicate unconditionally for the first time.
• 1856 – Battle of Rivas: Juan Santamaria burns down the hostel where William Walker's filibusters are holed up.
• 1868 – Former Shogun Tokugawa Yoshinobu surrenders Edo Castle to Imperial forces, marking the end of the Tokugawa shogunate.
• 1876 – The Benevolent and Protective Order of Elks is organized.
• 1881 – Spelman College is founded in Atlanta, Georgia as the Atlanta Baptist Female Seminary, an institute of higher education for African-American women.
• 1888 – The Concertgebouw in Amsterdam is inaugurated.
• 1908 – SMS Blücher, the last armored cruiser to be built by the German Imperial Navy, launches.
• 1913 – The Nevill Ground's pavilion is destroyed in a suffragette arson attack becoming the only cricket ground to be attacked by suffragettes.
• 1919 – The International Labour Organization is founded.
• 1921 – Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
• 1945 – World War II: American forces liberate the Buchenwald concentration camp.
• 1951 – Korean War: President Harry Truman relieves General of the Army Douglas MacArthur of overall command in Korea.
• 1951 – The Stone of Scone, the stone upon which Scottish monarchs were traditionally crowned, is found on the site of the altar of Arbroath Abbey. It had been taken by Scottish nationalist students from its place in Westminster Abbey.
• 1952 – The Battle of Nanri Island takes place.
• 1955 – The Air India Kashmir Princess is bombed and crashes in a failed assassination attempt on Zhou Enlai by the Kuomintang.
• 1957 – United Kingdom agrees to Singaporean self-rule.
• 1961 – The trial of Adolf Eichmann begins in Jerusalem.
• 1963 – Pope John XXIII issues Pacem in Terris, the first encyclical addressed to all instead of to Catholics alone.
• 1965 – The Palm Sunday tornado outbreak of 1965: Fifty-one tornadoes hit in six Midwestern states, killing 256 people.
• 1968 – President Lyndon B. Johnson signs the Civil Rights Act of 1968, prohibiting discrimination in the sale, rental, and financing of housing.
• 1970 – Apollo 13 is launched.
• 1972 – First edition of the BBC comedy panel game I'm Sorry I Haven't A Clue is broadcast, one of the longest running British radio shows in history.
• 1976 – The Apple I is created.
• 1977 – London Transport's Silver Jubilee buses are launched.
• 1979 – Ugandan dictator Idi Amin is deposed.
• 1981 – A massive riot in Brixton, South London, results in almost 300 police injuries and 65 serious civilian injuries.
• 1987 – The London Agreement is secretly signed between Israeli Foreign Affairs Minister Shimon Peres and King Hussein of Jordan.
• 1989 – Ron Hextall becomes the first goaltender in NHL history to score a goal in the playoffs.
• 1990 – Customs officers in Middlesbrough, England, United Kingdom, say they have seized what they believe to be the barrel of a massive gun on a ship bound for Iraq.
• 1993 – 450 prisoners rioted at the Southern Ohio Correctional Facility in Lucasville, Ohio, and continued to do so for ten days, citing grievances related to prison conditions, as well as the forced vaccination of Nation of Islam prisoners (for tuberculosis) against their religious beliefs.
• 2001 – The detained crew of a United States EP-3E aircraft that landed in Hainan, China after a collision with a J-8 fighter, is released.
• 2002 – The Ghriba synagogue bombing by Al Qaeda kills 21 in Tunisia.
• 2002 – Over two hundred thousand people marched in Caracas towards the Presidential Palace of Miraflores, to demand the resignation of president Hugo Chávez. 19 of the protesters are killed, and the Minister of Defense Gral. Lucas Rincon announces Hugo Chávez resignation on national TV.
• 2006 – Iranian President Mahmoud Ahmadinejad announces that Iran has successfully enriched uranium.
• 2007 – 2007 Algiers bombings: Two bombings in the Algerian capital of Algiers kill 33 people and wound a further 222 others.
• 2011 – A explosion in the Minsk Metro, Belarus kills 15 people and injures 204 others.
• 2012 – A 8.2 magnitude earthquake hits Indonesia, off northern Sumatra at a depth of 16.4 km. A tsunami hits the island of Nias at Indonesia.