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Sinking of Lusitania
The Lusitania was hit by an exploding torpedo on its starboard side. Germany had waged submarine warfare against the United Kingdom. President Wilson decided to enter World War I after all the American deaths caused by the sinking. -
Trench Warfare
Warfare in which opposing armed forces attack, counterattack, and defend from relatively permanent systems of trenches dug into the ground. Tanks were the only things that could break the use of trenches in war. -
Zimmerman Note
The Zimmerman Note was a secret diplomatic communication issued from the German Foreign Office. This proposed a military alliance between Germany and Mexico. Offered United States territory to Mexico in return for joining the German cause. -
Women
During WWI large numbers of women were recruited into jobs vacated by men who had gone to fight in the war.
The 19th Amendment gave women the right to vote, prohibiting any U.S citizen to be denied the vote bases on sex. -
Spanish Flu
An unusually deadly influenza pandemic, the first of two pandemics involving H1N1 influenza virus. It infected 500 million people around the world. It was one of the deadliest natural disasters in human history. -
Espionage and Sedition Act
The Sedition Act of 1918, a set of amendments to the Espionage Act, prohibited many forms of speech. (any disloyal, profane, or abusive language about the government of the U.S.)
These acts targeted at the Democratic-Republicans. -
Fourteen Points
The Fourteen Points was a statement of principles for peace that was to be used for peace negotiations in order to end WWI. League of Nations (1920)
Was an international organization, created after WWI to provide a forum for resolving international disputes. -
Treaty of Versailles
War ended with the Treaty of Versailles. After strict enforcement for five years, the French assented to the modification of important provisions. Germany agreed to pay reparations under the Dawes Plan and the Young Plan.
