What happened on April 11 ?

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 was victorious in the Battle of Ravenna.

1713 - War of the Spanish Succession (Queen Anne's War): Treaty of Utrecht.

1775 - Last execution for witchcraft in Germany.

1865 - Abraham Lincoln makes his last public speech.

1868 - The Shogunate is abolished in Japan.

1876 - The Benevolent and Protective Order of Elks is organized.

1888 - The Concertgebouw in Amsterdam is inaugurated.

1899 - Spain cedes Puerto Rico to the United States.

1905 - Einstein reveals Theory of Relativity.

1915 - Charlie Chaplin releases The Tramp.

1919 - International Labour Organization founded.

1921 - First sports broadcast on the radio.

1921 - The Emirate of Transjordan is created.

1945 - World War II: United States forces liberate Buchenwald concentration camp.

1951 - Korean War: President Harry S. Truman relieves General Douglas MacArthur of overall command in Korea.

1957 - Britain agrees to Singapore self rule.

1961 - Bob Dylan makes his singing début in New York City.

1965 - The Palm Sunday Tornado Outbreak: Fifty-one tornadoes hit in six Midwestern states killing 256 people.

1968 - Lyndon B. Johnson signs the Civil Rights Act of 1968, prohibiting discrimination in the sale, rental, and financing of housing.

1968 - German student leader Rudi Dutschke is shot in Berlin.

1970 - Apollo 13 is 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.

1983 - The film 'Gandhi' wins 8 Oscars

1987 - The London Agreement is secretly signed between Israeli Foreign Affairs Minister Shimon Peres and King Hussein of Jordan.

2001 - The detained crew of a United States EP-3E aircraft that landed in Hainan, People's Republic of China after a collision with an J-8 fighter is released.

2001 - Australia beat American Samoa 31-0 in a 2002 FIFA World Cup qualifying game, an international record.

2002 - The Ghriba synagogue bombing by Al Qaeda kills 21 in Tunisia.

2002 - An attempted coup d'état in Venezuela against President Hugo Chávez began.

2005 - Chelsea Cooley becomes Miss USA 2005 after winning the title out of 50 other states. She is the first ever winner from the state of North Carolina.

2006 - Iranian President Mahmoud Ahmadinejad announces that Iran has successfully enriched uranium.