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Franz Ferdinand Assassination
The assassination of the Archduke instigated the beginning of World War I -
Austria-Hungary declares war on Serbia (July 28, 1914)
Austria-Hungary declares war on Serbia because the Arch Duke Franz Ferdinand was assassinated by a Serb. -
First use of gas as a weapon by the Germans(April 1915)
The Germans used this gas to blind and move soldiers from the trenches causing them to be a very easy target to hit. -
Sinking of the Lusitania (May 7, 1915)
The sinking of the Lusitania furiated the president. It killed 128 americans. He then realized it was carrying war supplies. -
Wilson reelected; pledged American neutrality ( November 1916)
He said that America would be neutral throughout the fighting. -
Bolsheviks led by Lenin overthrow Russian goverment
The group started a revolution to overthrow the Russian goverment -
Zimmerman Note
This was a note that was sent to Mexico. During the send, the British intercepted it and told president Wilson. This made the U.S want to go into the war. -
U.S declares war
On April 1917, the United States joined the allied powers in WWI -
war ends
On November 11, 1918 the first ever world war ended. -
Treaty of Versialles
This treaty brought peace to the World