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Assassination of Archduke Franz Ferdinand
The Archduke Franz Ferdinand of Austria-Hungary was assassinated in Sarajevo, Serbia, during a diplomatic visit to the neighboring country. -
World War I Begins
Germany invades Belgium and World War I begins. -
Large Amounts of Gas
Germany fired large shells filled with gas. This was the first time that large amounts of gas was used in battle. -
First Tanks
Brittain deploy the first tanks ever used in battle, and even though they were effective for breaking through barbed wire, they didn't really work as a destructive weapon quite yet. -
Unrestricted Submarine Warfare
Germany starts using submariens in European waterways without restriction. As this puts American ships in danger, this is the act that finally makes U.S. declare war on Germany. -
U.S. Enters War
U.S. Congress approves the declaration of War on Germany, and joins in alliance with France and Brittain. -
Germany and Russia establish Peace
Germany signs a peace treaty with Russia, and gains land that had belonged to Ukraine and Poland. -
Battle of Catigny
The first major US offensive of World War I. -
German Kaiser Wilhelm Abdicates
The German Kaiser Wilhelm abdicates ending all hope for a German victory. He escapes to the Netherlands where he live the rest of his life in peace. -
Treaty of Verssailles
The peace treaty that ended World War I.