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Germany resumes unsrestricted submarine warfare
More than 5 American ships sunk by German submarines was one of the reasons that impelled America's intervention in the Great War. -
Zimmerman Note
American's interception of a hidden code that Germany tried to send to Mexico to figh the U.S., thus aliviating America's burden in Europe later. -
United States enters WWI
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Fourteen Points
President Wilson's points that seeked to solve the long-lasting conflict in Europe among its powerful nations. -
Armistice
Marked the end of the War the eleventh month, the eleventh day, the eleventh hour, and the eleventh minute in 1918. -
Eighteenth Amendment
Marked the Prohibition of alcohol in America. -
Nineteenth Amendment
Accepted women suffrage in all US territories. -
Immigration Act
Passed by the US Congress to restrict, for first time in its history, the entrance of foreigners into the nation.