September 30, 2020
For educational institutions
⟶ Updated 29 Nov 2018 ⟶
List of edits
The assassination of Archduke Franz Ferdinand in Sarajevo
Austria-Hungary declares war on Serbia, starting World War 1.
Germany declares war on Russia.
Russian defeat at Tannenberg
Battle of Masurian Lakes
Turkey enters the war with the central powers.
Russia declares war on Turkey.
Sinking of the Lusitania
Italy joins the Allies.
Battle of Jutland
First airplane raid
Serbia is invaded by Germany, Austria, and Bulgaria.
Battle of Verdun begins.
Battle of Somme
President Wilson gets reelected.
German U-boat campaign
The U.S. stops relations with Germany.
Zimmerman Telegraph is uncovered.
The U.S. declares war on Germany.
First American troops land in France.
First American soldiers killed.
Bolsheviks take control of Russia
14 Points are introduced.
Treaty of Brest-Litovsk is signed.
Allies recover France and Belgium.
Bolsheviks kill the Czar of Russia.
Armistice signed with Turkey.
Kaiser Wilhelm abdicated the throne.
Germany signs an armistice
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