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theory of relativaty
Albert Enstein came up with the theory of relativaty -
continental drift
in 1912 Alfred wagner came up with the theory of continental drift -
theory of big bang
George Lemminite create the the theory of the Big Bang in 1927 -
discovery of milkey way
Edwin Hubble discoverd our galexy was the milkey way in 1929 and that our galaxy is eliptical
