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Assasination of Archduke Franz Ferdinand
The ruler of Austria-Hungary was shot and killed by a Serbian activist and a member of the Black Hand. His name was Gavrilo Princip. -
Austria-Hungary declares war on Serbia
Austria-Hungary crushed Serbia. -
Russia began Mobilization
Russia, as Serbia's ally, began the readying of troops. -
Germany declares war on France
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Germany declares war on France
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Germany invaded neutral Belgium.
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Britan enters War
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America is Neutral
Woodrow Wilson declares it. -
Austria-Hungary declares war on Russia and Serbia declares war on Germany.
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U.S. President Woodrow Wilson announces the U.S. will remain neutral.
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The First Battle of the Marne begins. Trench warfare begins as soldiers on both sides dig in.
Trench warfare begins as soldiers on both sides dig in. -
The British ocean liner RMS Lusitania is sunk by German U-boat
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U-boat torpedoed Sussex, a French ship.
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Germany sends the secret Zimmerman Telegram to Mexico in an effort to entice Mexico to join the war. The British intercept and decipher the coded message.
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The United States declares war on Germany.
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The Bolsheviks successfully overthrow the Russian government.
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U.S. President Woodrow Wilson issues his Fourteen Points to peace.
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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 (i.e. 11 a.m. on November 11).
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The Treaty of Versailles officially ends World War 1.
