-
September 14th, 1901
Teddy Roosevelt becomes President. -
1904
Teddy Roosevelt Corollary to the Monroe Doctrine -
1904-1914
The Panama Canal was built. -
1906
The Hepburn Act -
1906
The Pure Food and Drug Act -
April 12th, 1912
The Titanic Sinks -
1913
The Sixteenth Amendment becomes ratified. -
1913
The Seventeenth Amendment becomes ratified. -
1913
The Federal Reserve Systems begins. -
June 28th, 1914
World War 1 begins -
1915
U.S. troops sent to Haiti -
1917
U.S. enters the World War -
February 1st, 1917
The Russian Revolution -
1918
The Treaty of Versailles -
November 11th, 1918
World War 1 Ends -
1919
The Eighteenth Amendment prohibits alcoholic beverages. -
1920
The Nineteenth Amendment allows women the right to vote.