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Assassinated by Gavrilo Princip because of Austria-Hungary not wanting to split into separate countries.
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Austria-Hungary declares war on Serbia because of Ferdinand's assasination. Gavrilo Princip was a Serb from Serbia and part of "the Black Hand".
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Battle between France and the UK against the German Empire. Took place at the Marne River near Paris, France. The Allied won. Total of around 154,700 casualties.
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German U-Boats shot down the British Lusitania killing 1,198 innocent people. This was one of many reasons America joined the Allied side in the war.
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Kingdom of Italy vs. Austria-Hungary in Veneto, Italy. Italians won with a defensive victory. This battle was caused due to Austria-Hungary accusing Italy of betraying the Triple Entente.
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Bloodiest battle of World War 1 accumulating a total of 1,000,000+ casualties. British and France vs. German Empire in Amiens, France.
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British forces intercepted and decoded the German Zimmerman Note that was intended to arrive in Mexico asking them to join the Central Powers in the war.
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The U.S. joins the war with the Allied Powers because of Germany's attack on the Lusitania, the Zimmerman Note, and even Germany attacking U.S. American ships.
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The Selective Service Act was passed to give the government allowance to enlist men from the U.S. to fight in the war.
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Britain, France, and Belgium vs. German Empire in Ypres, Belgium. They were fighting for control of the South and East ridges of the Belgium city.
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Britain, France, and US vs German Empire in Cambrai, France. There was around 90,000 casualties during this war.
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France, U.S., U.K., Kingdom of Italy, and Siam against the German Empire at the Marne River near Paris, France. The Allies won this battle.
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Germany surrenders, somewhat ending World War 1.
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Treaty of Versailles is signed officially ending World War 1.