Wikipedia:Selected anniversaries/April 11
April 11: Mawlid in Sunni Islam (2006)
- 1241 - Mongols led by Batu Khan and Subutai crushed the Hungarian army of King Béla IV in the Battle of Mohi.
- 1945 - World War II: The Buchenwald concentration camp was liberated.
- 1951 - Korean War: General Douglas MacArthur was relieved of overall command in Korea.
- 1965 - Fifty-one tornadoes struck six states in Midwestern United States during the Palm Sunday Tornado Outbreak.
- 2002 - President Hugo Chávez (pictured) was forced to resign during a military coup attempt in Venezuela.