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Assassination of the Archduke
On June 28, 1914 the Black Hand terrorist organization based from Serbia planned to assassinate the Archduke of Austria-Hungary, Franz Ferdinand. Their leader, Gavrilo Princip succeeded in this, shooting Franz and his wife. -
The Russians Mobilize Troops
The Russian troops were mobilized to the border of Austria-Hungary to inspect the tension between their ally, Serbia, and their neighbor Austria-Hungary. -
The War Begins
The German Empire invaded Belgium on the fourth of August 1914, causing more than eight countries to declare war on each other because of the many alliances of the time. -
The Lustitania is Sunk
A German Undersea-boot, or Uboat, sunk one of the most high class cruise liners of the British area. This threw the entire Triple Entante into mayhem as there was many citizens of those countries killed. -
The First Tanks
The first tanks were invented by the British on September 15, 1916. These machines revolutionized how armies and soldiers were deployed, as they were highly destructive, and very dangerous. These tanks were first introduced in the Battle of Flers-Courcelette. -
The Zimmerman Note
On February 25, 1917, a German telegram was intercepted by the United States being sent to Mexico. This telegram was stating that if the Mexican people wanted their land in New Mexico, Arizona, and Texas back, that they would have to fight with the Germans and invade the United States. -
The United States Declares War
On April 6, 1917 the United States was fed up with the way that they and their allies were being treated and threatened by the Triple Alliance was carrying out. With this plus the Zimmerman Note, which was intercepted nearly two months before, the United States declared war with the Triple Alliance. -
The Germans and Russians Declare Peace
The Germans signed a peace treaty with the newly formed Bolshevik government of Russia, allowing them to remain safe in their nation without the fear of an outside war. This treaty was called the Brest-Litovsk treaty. -
The Battle of St. Mihiel Begins
The battle of St. Mihiel was a battle in which nearly 300,000 Americans hurled themselves past the German lines in order to attempt to end the war. This is one of the most influential battles of the entire war, as it forced the German soldiers back many miles. -
Armistice Day Arrives
The German powers agree to sign an armistice for the interim until the allies could create a treaty to be signed to officially end the war. This was signed on the 11th day of the 11th month at the 11th hour.
