-
The Triple Alliance is Formed
Germany, Italy, and Austria-Hungary formed the Triple Alliance. They promised to protect each other from France and Russia. -
The Triple Entente is Formed
France, Great Britain, and Russia formed the Triple Entente. They promised to support each other from Germany. -
Austria-Hungary Takes Control of Bosnia
Austria-Hungary annexed Bosnia and Herzegovina. They were formerly controlled by the Ottoman Empire. -
Archduke Franz Ferdinand is Assassinated in Sarajevo
Franz Ferdinand's assassination was the spark for World War I. -
Austria-Hungary Declares War on Serbia
This event actually started WWI. Austria-Hungary declared war on Serbia because Serbia killed Archduke Franz Ferdinand and his wife. -
Germany Invaded Belgium
Germany invaded Belgium, who was fortified around the border. Other nations were worried because Germany invaded a neutral country, which was against international laws. -
A German U-Boat Sinks the Lusitania
A German U-Boat fired a torpedo into the side of the ship, which then caused chaos. The ship sunk within 18 minutes. -
Germany Torpedoes the Sussex
Germany promised to not torpedo any passenger ships that come by, but they broke their promise. They torpedoed the Sussex. -
The First Battle of the Somme Begins
The British attacked the Germans near the Somme River, and were badly woundly and also many killed. -
The Zimmerman Note is Discovered
German foreign minister Zimmermann sent a message to the mexican government. The British intercepted the message and told America. -
The United States Declares War on Germany
Wilson declared war on Germany for a few reasons. One was because of the Zimmermann telegram in which Germany and mexico were going to team up. -
Selective Service Act
This act required men to register with the government if wanting to be randomly selected into the military.
