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Assassination of Archduke Ferdinand
Archduke Franz Ferdinand and his wife were assassinated while visiting Sarajevo, Bosnia. He was next in line for the Austro-Hungarian throne. The killings set off decades old tensions in Europe and started WWI. -
Austria-Hungry declares war on Serbia
Austria-Hungry declared war on Serbia because the Austria-Hungry ruler was killed in Serbia in 1914. -
Germans use poison gas for first time
Germans used poison gas for the first time in warfare. It was a new type of fighting and people didn't know how to defend against it. -
Sinking of the Lusitania
The sinking of the Lusitania pushed us closer to entering the war. Because it sank with American civilians on by a U-Boat. -
The Zimmermann Note
The Zimmermann Note was one of the other reasons the U.S entered the war in 1917. It was a message intercepted by the British and it was a alliance that Germany wanted to do with Mexico to Beat the U.S. -
Bolsheviks overthrow Russian government
Bolsheviks led by Lenin overthrew the Russian government because it was unstable. This led to the Russian leaving World War I. -
U.S enters war
The U.S entered the war because the germans changed it policy of giving a warning before shooting a torpedo, but they changed to shoot on sight. That is one of the reasons why we joined the fight. -
WWI ending
WWI ended in 1918 because the United States pushed the Germans back to Germany and the Germans had nothing left no food water and there people were starving as we.
