1900-1920 By sjstanton98 Mar 2, 1901 U.S. Steel Corporation founded Jun 30, 1906 Pure Food and Drug Act signed into law by President Roosevelt Feb 15, 1907 Gentleman's Agreement of 1907 signed, stopping all immigration from Japan to America Nov 16, 1907 Oklahoma becomes a state Mar 25, 1911 Triangle Shirtwaist factory catches fire, killing 146 workers May 15, 1911 Standard Oil Corporation is order to be dissolved May 7, 1915 RMS Lusitania is sunk, killing 128 Americans Apr 6, 1917 The U.S. declares war with Germany, entering World War I Nov 11, 1918 World War I ends Jun 4, 1919 Congress proposes the 19th Amendment, giving women the right to vote