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Assassination of Archduke
The assassination of Archduke Ferndinad. Him and his wife were assassinated -
Russia Moblizes
Russia mobilizes its vast army to intervene against Austria-Hungary in favor of its ally, Serbia. This move starts a chain reaction that leads to the mobilization of the rest of the European Great Powers, and inevitably to the outbreak of hostilities. -
Germans Fire
The Germans fire shells filled with chlorine gas at Allied lines. This is the first time that large amounts of gas are used in battle, and the result is the near-collapse of the French lines. However, the Germans are unable to take advantage of the breach. -
Lusitania Sinks
A German submarine sinks the passenger liner Lusitania. The ship carries 1,198 people, 128 of them Americans. -
Submarines Back
Germany resumes unrestricted submarine warfare in European waterways. This act, more than any other, draws the United States into the war and causes the eventual defeat of Germany. -
Zimmerman Telegram
British intelligence gives Wilson the so-called Zimmermann Telegram, a message from German foreign secretary Arthur Zimmermann proposing that Mexico side with Germany in case of war between Germany and the United States. In return, Germany promises to return to Mexico the "lost provinces" of Texas and much of the rest of the American Southwest. Mexico declines the offer, but the outrage at this interference in the Western Hemisphere pushes American public opinion to support entering the war. -
Belleau Wood
RANGEEND_BELLEAU_WOOD The Battle of Belleau Wood ends with the final expulsion of the Germans from the wood, which marks the farthest German advance on Paris. The area has changed hands six times during the three-week battle, which has caused nearly 10,000 American casualties. -
Battle of St. Mihiel
The Battle of St. Mihiel begins when 300,000 American troops under the direct command of General Pershing fling themselves into the German lines. -
Wilhelm Abdicates
Kaiser Wilhelm abdicates, ending all German hope for a victory. He and his retinue quietly slip over the border into the Netherlands where he lives out the remainder of his life in relative peace and writes a self-promoting memoir defending his actions in the war. -
Treaty of Versailles
It was a treaty to help end World War 1
