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Assassination of the Archduke
The Archduke Franz Ferdinand was assassinated by a member of the Black Hand Serbian nationalist group. -
Declaration of War
Austria-Hungary declares war on Serbia and Russia mobalizes. -
Germany declares war on Russia
Germany declares war on Russia -
Germany declares war on France
Germany declares war on France as part of the Schlieflen Plan. -
First Battle of Marne
The Allies stop Germany from advancing to Paris in the Battle of Marne. The Germans dig trenches and trench warfare remains for the next four years. -
Sinking of the Lusitania
A German U-boat of the coast of Ireland sinks a British passenger boat, killing 1,198 people -
Battle of Somme begins
Located on both sides of the Somme river, as one of the bloodiest battles in the war, over 1 million men were lost. -
Zimmerman Telegram
The British intercepted a telegram from Germany to Mexico that entailed discussion for a Mexican attack on U.S soil. -
U.S joins the war
After the Zimmerman telegram, the U.S decalres war on GERmany. -
Russian Revolution
In the middle of war, the Russian tzar is overthrown by the Bolshevic party. -
Armistice
Germany and the allies agree to an armistice. -
Treaty of Versailles
The big four meet to determine the fate of the post-war central powers and begin the drafting of a treaty.