Albert Einstein (1879-1955) proposed a theory of general relativity in 1915, which built on work he had done in 1905. He won a well-deserved Nobel Prize, but not for his theory of relativity. | Albert Einstein (1879-1955) proposed a theory of general relativity in 1915, which built on work he had done in 1905. He won a well-deserved Nobel Prize, but not for his theory of relativity. |