Albert Einstein (German pronunciation (help·info)) (March 14, 1879 – April 18, 1955) was a German-born theoretical physicist who is widely considered one of the greatest physicists of all time.^[1][2] While best known for the theory of relativity (and specifically mass-energy equivalence, E=mc²), he was awarded the 1921 Nobel Prize in PhysicsAnnus Mirabilis) explanation of the photoelectric effectTheoretical Physics". In popular culture, the name "Einstein" has become synonymous with great intelligence and genius. Einstein was named Time magazine's "Man of the Century." for his 1905 ( and "for his services to

^{Einstein in an address at the University of Glasgow in 1933.}