March 13, 1781Astronomer William Herschel discovers the planet Uranus, which he names Georgium Sidus in honor of George III. He initially thinks it was a comet.

March 14, 1879Physicist Albert Einstein, mathematician best known for his theories on relativity is born in Ulm, Germany. He receives the Physics Nobel Prize in 1921.

March 15, 44 BCRoman Emperor Julius Caesar is murdered by Brutus, Cassius and other conspirators on the Ides of March. He h