History Timeline 1900 - 1940 By mhodges5 Period: Jan 1, 1900 to Dec 31, 1940 Important Historical Events Sep 14, 1901 Theodore Roosevelt becomes president Dec 17, 1903 Wright Brothers fly an airplane at Kitty Hawk Apr 18, 1906 San Francisco earthquake Oct 1, 1908 First Model T produced Mar 4, 1909 William Taft becomes President May 30, 1911 First Indy 500 Feb 14, 1912 Arizona becomes a state Mar 4, 1913 Woodrow Wilson becomes President Dec 1, 1913 First automobile assembly line Jan 7, 1914 First complete Panama Canal passage takes place Mar 4, 1921 Warren Harding becomes president Aug 3, 1923 Calvin Coolidge becomes president Sep 30, 1927 Babe Ruth hits 60th homerun Sep 28, 1928 Penicillin invented Mar 4, 1929 Herbert Hoover becomes President Mar 4, 1933 Franklin D.Roosevelt becomes president May 6, 1937 Hindenburg explodes Jul 2, 1937 Amelia Earhart disappears over the Pacific Jan 13, 1938 Snow White and the 7 Dwarfs released Oct 30, 1938 War of the Worlds broadcast War of the Worlds broadcast
