Progressive era

Events

1901 - 1909
September 2, 1901 - March 4, 1909
May 12, 1902 - October 23, 1902
1904 - 1914
1905
1905 - 1906
1906
1906
1910
1912
1913
1913
1913
1914 - 1918
September 5, 1914 - November 11, 1918
1915
1915
1915
May 4, 1916
1917
1918
1919
1919
1919
1919 - 1921
1919