-
Franz Ferdinand Assassination
Archduke Franz Ferdinand and his wife were assassinated while visiting Sarajevo, Bosnia. He was next in line for the Austro- Hungarian throne.The killings set off decades old tensions in Europe and started WWI -
First Use of poison gas weapons by Germans
The new poison gas weapon could kill or seriously injure anyone who breathed it. After the Germans used the gas on battlefield the Allied troops began to use it. -
The first use of trench warfare
Trench warfare is where armies dig along the front lines. The trenches sheltered soldiers from bullets and artillery shells. In between there was considered "no man's land" where there were shell creates and barbed wire which neither side controlled -
Sinking of the Lusitania
On May 7, 1915, a German U-boat torpedoed the British passenger liner called the Lusitania near the coast of Ireland. More than 1,000 people died when the Lusitania sank among them they were128 American citizens. This angered the Americans greatly and created a doubt whether to join the war or not. -
Attacking of the Sussex
The Sussex was an unarmed French passenger ship that was attacked by a German U-boat. Several Americans suffered severe injuries which angered the Americans. However this was all quickly resolved when Germany offered money to those injured to those on the Sussex, promised warned neutral ships and passenger ships passing, and The Sussex Pledge was in play which resolved all submarine conflict. -
Zimmerman Note
The Zimmerman Note was a secret telegram that was intercepted by British agents. The note was sent from Germany heading to Mexico.
The note indicated that Germany wanted to form an alliance with Mexico against the United States. -
U.S. Enters WWI
When the United States decided to enter the war due to several events from the Lusitania to the Zimmerman note. Not to far after on May 18 the Selective Service Act was passed. Men 21 to 30 were able to fight however out of the 5 million soldiers 3 million were called to serve and 2 million joined voluntarily. -
Treaty of Versailles
The Treaty of Versailles was a treaty was on harsh terms against the Germans stating that they would accept full responsibility for the conflict. The treaty also stated that Germans would have to pay billions of dollars to the Allies, and give up their territory in Europe.