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The Archduke and his wife Sophia are killed
When visiting Sarajevo, a group called The Black Hand set out to kill them. Sophia and Franz Ferdinand were shot by Gavrilo Princip. -
Austria- Hungary declares war on Serbia
The spark to start the war was the assassination of the Archduke, as a result Austria declared war on Serbia. -
Russia announces troop mobilization
Tsar Nicholas II mobilized Russian forces to threaten Austria-Hungary if it invaded Serbia. -
Battle of Marne
The Germans succeeded in capturing a large part of the industrial north east of France. This was a turning point because it marked that last German offensive of the war & it marked the entry of American troops into the war -
Sinking of the Lusitania
A German U-boat torpedoed the British-owned steamship Lusitania, killing 1195 people including 123 Americans. This was the reason the Americans dropped their neutrality and joined the war. -
Zimmerman Note
It was a telegraph sent to Mexico promising United States land if they joined the Germans in war against the U.S. -
United States join the war
The U.S. wanted to remain neutral because they had immigrants and their trading. Due to the sinking of the Lusitania killing a good amount of Americans, they had no choice but to join the war. -
Fourteen Points
Statement of principles that listed how to prevent all future wars created by U.S. President Woodrow Wilson. -
Treaty of Brest- Litovsk
Between Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and Turkey), that ended Russia's participation in the war. -
Treaty of Versailles
It ended the state of war between Germany and most of the Allied Powers. It was widely agreed that the Treaty of Versailles failed because it was filled with harsh punishment and unrealistic expectations of massive reparations payments and demilitarization imposed on Germany for its wrongdoing.