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Italy
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Assassination
Archduke Franz Ferdinand of Austria and his wife, Sophie, Duchess of Hohenberg, were shot dead in Sarajevo by Gavrilo Princip, -
Serbia
Austria-Hungary declares war on Serbia, -
Austria- Hungary
This was a constitutional union of the Empire of Austria and the Apostolic Kingdom of Hungary -
Russia
Germany delcared war with russia -
Belgium
Germany wrote an ultimatum to neutral Belgium asking permission to march through the country en route to Paris. -
Great Britain
The British declaration of war on Germany -
Germany
German invation in Belgium began -
Declaration of Neutrality
Woodrow Wilson made Congress and made public the U.S. policy of neutrality -
France
French Fifth Army attacked St. Quentin. -
Ottoman Empire
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The Lusitania
the Lusiitania torpedoed and sunk by a German U-boat, causing the deaths of 1,198 passengers and crew. -
Bulgaria
Prime Minister Vasil Radoslavov of Bulgaria issues a statement announcing his country’s entrance into the First World War on the side of the Central Powers. -
Portugal
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Romania
The Germans attack again at Verdun -
Sussesx Pledge Made
This was a promise by the German Government to the United States in response to US demands relating to the conduct of the First World War. -
Zimmermann Note
The Zimmermann Telegram (or Zimmermann Note) was a 1917 diplomatic proposal from the German Empire for Mexico to join an alliance with Germany in the event of the United States entering World War I against Germany -
Sussex Pledge Ended
The Sussex pledge only put off the inevitable American entry into the war -
3 American ships were targeted
3 american Ships were targeted by germans -
Declaration of War
Wison outlined a case for war on April 2 but had the formal declaration on April 6, 1917. -
Greece
Greece declares war on the Central Powers,