August 14, 1935: Social Security Act signed into law by FDR
August 13, 1961: Berlin is divided into east and west
August 12, 1990: Largest T-rex skeleton ever discovered
August 11, 1972: Last U.S. ground combat troops leave Vietnam
August 10, 1846: Smithsonian established
August 8, 1974: President Nixon formally resigns from office