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Arch Duke of Austria Franz Ferdinand was killed in Serbia by the Black Hand group. This is important because it was the main cause of the war.
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Presidant Woodrow Wilson declares the U.S. will remain neutral. This is important because the U.S. was a super power and refused to join.
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Soldiers dig in on both sides at the First Battle Marne. This is important because trench warfare was a new style off warfare and most of the war took place in fields and trenches.
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Germans use poison gas at the Second Battle of Ypres. This was important because it was a new weapon that forced soldiers out of trenches changing the way they fought.
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The longest and blodiest battle in WW1. This was important because it was the largest and deadliest battle.
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Tanks are used for the first time at the Battle of the Somme. This is important because it changed the way they fought battle.
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After 3 years of neutrality the U.S. joins the Allies to fight Germany. This was important because the U.S. helped change the tide of the war.
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The Germans launch several large attacks acrossed the western front. This was important because it was the deepsest advancements from either side.
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Germany signs the armistice at Compiegne, France. Fighting ends on the 11th hour of the 11th day of the 11th month. This is important because the war stopped
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Ended the state of war between Germany and the Allied Powers.
