World War I

Assassination of Archduke Franz Ferdinand

Jun 28, 1914

The Road to War
Origins of World War I
War Begins

Austria-Hungary declares war on Serbia

Jul 29, 1914

The Road to War
Origins of World War I
War Begins

German U-boat sinks Lusitania of the U.S

May 7, 1915

The Road to War
American Neutrality
The Lusitania

Trench Warfare

Feb 21, 1916

The Road to War
The Deadliest War
War Begins

Zimmerman Telegram

Feb 24, 1917

The Road to War
Entering the War
Zimmerman Telegram

German U-boats sink 3 U.S merchant ships.

Mar 1, 1917

The Road to War
Entering the War
Zimmerman Telegram

Russian Tsar is overthrown

Mar 5, 1917

The Road to War
Entering the War
Russian Revolution

The U.S declares war to help the Allied powers fight tyranny.

Apr 2, 1917

The Road to War
Entering the War
Russian Revolution

2m soldiers deserted Russian front lines. Germany drives into Russia and overtakes some of it.

Jul 1, 1917

Americans at War
Joining the Fight
Russia Makes Peace

Treaty of Breast-Litovsk

Mar 3, 1918

Americans at War
Setbacks and Advances
Russia Makes Peace

German “Peace offensive”

Mar 21, 1918

Americans at War
Joining the Fight
Germany Attacks

America and France counteract near Château-Thierry

Jul 1, 1918

Americans at War
Joining the Fight
Turning the Tide

Battle of the Argonne Forest

Sep 26, 1918

Americans at War
Joining the Fight
Battle of the Argonne Forest

Armistice to end fighting

Nov 11, 1918

Americans at War
The Armistice
A Harsh Armistice

Ratification of the Treaty of Versailles by the U.S. and European nations

Aug 19, 1919

Shaping the Peace
Peace Conference in Paris
The Treaty of Versailles