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Archduke Franz Ferdinand is assassinated. he was assassinated in Sarajevo. he was murdered by a 19 year old american
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Russia mobilizes its vast army to intervene against Austria Hungary and the rest of europe mobilizes
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Germany invaded belgium starting world war 1. belgium was a neutral country and didnt want to be bothered. after they were invaded other countries had gotten involved
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A German submarine sinks the passenger liner Lusitania. The ship carried more than 1,000 people.128 were americans
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The Germans fire shells filled with chlorine gas at Allied lines. This is the first time that large amounts of gas are used in battle. they ouldnt take advantage of the breach fortunatley
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Kaiser Wilhelm suspends unrestricted submarine warfare after the Lusitania sinks. when he suspended submarine activity it was to prevent the united states to start coming into he war. american supplies were still coming through to france because of this.
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The British employ the first tanks ever used in battle, at Delville Wood. They were very useful for going through barbed wire and clearing paths. they were not very good weapons like they thought
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Germany resumes unrestricted submarine warfare in European waterways. Because supplies kept coming in. This draws the United States into the war and causes the defeat of Germany.
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British intelligence gives Wilson the Zimmermann Telegram. a message from German foreign secretary Arthur Zimmermann proposing that Mexico side with Germany in case of war between Germany and the United States.
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President Wilson outlines his case for war to Congress.
