-
1900
Gold Standard -
1901
Theodore Roosevelt becomes president -
1904
Roosevelt Corollary to Monroe Doctrine -
1906
Hepburn Act -
1913
Sixteen Amendment authorizing income tax ratified -
1914
World War 1 Begins -
1915
KKK revived -
1915
US troops sent to Haiti -
1917
US enters WW1 -
1918
WW1 ends -
1919
Eighteen Amendment prohibits alcoholic beverages -
1920
Nineteenth Amendment gives women the right to vote