1978 Birthday Devon Gummersall, born in Colorado, actor, 'Relativity', Brian in 'My So Called Life' 1976 Event Viking 1 radio signal from Mars help prove general theory of relativity 1968 Death Leopold Infeld, Pol nuclear physcist (Motion and Relativity), dies at 69 1921 Event Albert Einstein lectures in New York City on his new theory of relativity 1921 Event Albert Einstein lectures in New York on his new theory of relativity 1916 Event Einstein's Theory of General Relativity presented 1915 Event Albert Einstein publishes the General Theory of Relativity 1906 Event Einstein introduces his Theory of Relativity 1885 Birthday Erwin F Finlay-Freundlich, British astronomer, theory of relativity
