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Archduke Franz Ferdinand and his wife were assassinated while visiting Sarajevo, Bosnia. he was next in line of the Austro Hungarian throne. The Killings set off decades-old tensions in Europe and started WWI.
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On July 28 1914 one month to the day after Archduke- Franz Ferdinand and of Austria and his wife were killed by a Serbian nationalist, Sarajevo Austria Hungary declare war on Serbia, beginning the firs world war
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On April 22, 1915 German forces shocked the allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas. most of the gas froze because it was really cold but other than that 1,000 people died
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RMS Lusitania was sunk on May 7, 1915 by a German u boat. 1,198 people of the 1,959 on board were killed which were Americans. their were on 761 survivors.
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The Zimmerman Note was a secret diplomatic communication issued from the German foreign office in January 1917 that proposed a military alliance between Germany and Mexico
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On April 6 1917 the US joined it's allies-- Britian, France and Russia to fight in WWI
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At 8:30 on April 12, 1917, President Wilson appeared before a joint session of congress, and asked for a declaration of war against Germany in order to make the world an safe democracy.
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On Nov. 7 1917, Russia's Bolshevik Revolution took place as forces led by Vladimir Ilych Lenin overthrew the provisional Government of Alexander Kerensky.
