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Archduke Franz Ferdinand is assassinated in Sarajevo. His death is the event that sparks World War I.
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Russia mobilizes its vast army to intervene against Austria-Hungary in favor of its ally, Serbia.
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The war has begun! WW1 is starting. Germany invades Belgium, beginning World War I.
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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, and the result is the near-collapse of the French lines.
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A German submarine sinks the passenger liner Lusitania. The ship carries 1,198 people, 128 of them Americans.
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The Submarines were were limited so they did not have a lot of them.
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The first tanks in WW1 to be used in the war.
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Us has now entered the war, because we were there allies. We helped France and Britain. We were on there side and saved their butts.
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The Germans sign a peace treaty with the new Bolshevik government of Russia.
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The Battle of Cantigny is the first major American offensive of the war. Though small in scale, the Americans fight bravely and soon go on to larger attacks against German positions.
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The Battle of St. Mihiel begins when 300,000 American troops under the direct command of General Pershing fling themselves into the German lines.
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Kaiser Wilhelm abdicates, ending all German hope for a victory.
