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Archduke Franz Ferdinand was shot along with his wife by a 19 year old who was supplied weapons by the terrorist organization "The Black Hand." This event triggers World War I.
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Britain declares war on Germany because Germany invaded Belgium inorder to get to France.
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President Woodrow Wilson demands that Germany shop sinking ships without warning.
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A German submarine sank the British ship Lusitania with a torpedo. This killed over 1,000 people, including 128 Americans.
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After making the U.S. mad by killing 128 American on the Lusitania, Germany stops sinking ships without warning.
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Henry's ship carried Americans to Europe countries to meet with European pacifists. The purpose of his journey was to call a coference of delegates from non-combatant countries in World War I.
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President Woodrow Wilson gets re-elected with his campaign slogan, "he kept us out of the war."
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Britain intercepts a telegram from Germany's Secretary Zimmermann. Zimmermann's telegram was meant for Mexico asking them to enter the war against the U.S.
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Germany resumes unrestriced submarine warfare.
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Newspapers published the Zimmermann Telegram, making many mad.
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President Woodrow WIlson asks Congress to declare war against Germany, becasue "the world must be made safe for democracy."
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The United States declared war on the Central Powers.
