1940s-60s By centralschool Jan 1, 1940 FDR serves his third term as U.S. president Jun 10, 1941 Great Britain hit by German bomb Jun 9, 1944 Hitler Escapes Assassination Attempt Sep 14, 1945 FDR is assainated President has been shot in the head Dec 30, 1946 China becomes communist Mar 26, 1948 the big bang theroy was invinted Scientist discover the answer to out galaxy ,,what they call the big bang theroy Jun 17, 1950 Korean war begins Apr 12, 1952 polio disease vaccine is made Aug 25, 1955 Montgomery buss boy cott begins Jan 20, 1957 Dr. Seuss Publishes The cat in the hat Oct 18, 1960 Most Powerful Earthquake Ever Recorded Hits Chile
