The events happened on 11th April are :
: Napoleon's abdication at Fontainebleau : On this day in 1814, during the French revolutionary and Napoleonic wars, Napoleon was facing an invasion of France by forces bent on his overthrow and, pressed by his own officers, abdicated unconditionally at Fontainebleau.
: Halley's Comet reached its perigee (point nearest the Earth) during its most recent passage near the planet.
: Mathematician Andrew John Wiles, deviser of a proof of Fermat's last theorem, was born in Cambridge, Cambridgeshire, England.
: U.S. President Harry S. Truman relieved General Douglas MacArthur of his command of United Nations and U.S. forces during the Korean War.
: Cuban patriot José Julián Martí landed in Cuba at the head of an invading force whose goal was to win independence from Spain.
: Dean Acheson—U.S. secretary of state from 1949 to 1953, adviser to four presidents, and the principal creator of U.S. foreign policy in the Cold War period following World War II—was born.
: Emperor Ferdinand I of Austria confirmed the March Laws, which formed the foundation of the modern state of Hungary.
: The eruption of Mount Tambora, a volcano on the island of Sumbawa, Indonesia, killed about 10,000 people.
10th April | 12th April