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Archduke Franz Ferdinnand and his wife are assassinated
shot dead in Sarajevo by Gavrilo Princip -
German declares war on russia and france. Great Britain declares war on germany and austriahungary
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lusitania went down
lusitania sunk from a german u-boat attack. 1,198 people lost, 128 of them were americans. -
German U-boats sink the Lusitania, and 1,198 people die
any british or allied ship found in the waters around Britain would be sunk -
Zimmermann note
a telegram from the german foreign minister to the german ambassador in mexico that was intersepted by the british -
Congress passes the sedition Act
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Austriahungary surrendered to the Allies
