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Assasination of Archduke Franz Ferdinand and his wife
Archduke Franz Ferdinand together with his wife Sophie the Duchess of Hohenberg are assassinated by a Serbian nationalist in Sarajevo, Bosnia. (http://www.history.com/this-day-in-history/archduke-franz-ferdinand-assassinated) -
Austria-Hungary declares war on Serbia.
Serbia, supported by Russia, which is allied with France, refused to comply to Austria-Hungary’s demands, supported by Germany, to suppress its nationalist movement who killed the Archduke and his wife. Austria-Hungary then declared war on Serbia. (http://www.history.com/this-day-in-history/austria-hungary-declares-war-on-serbia) -
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Battle of Tannenberg begins
The German Army, under the command of Paul von Hindenburg and Erich Ludendorff, defeated the Russian Army, led by General Aleksandr Samsonov, in East Prussia during the early days of World War I (http://www.history.com/this-day-in-history/battle-of-tannenberg-begins) -
Germany declares war zone around British Isles
Kaiser Wilhelm declared the North Sea (the water surrounding British Isles) a war zone. Which means that all merchant ships, even the merchant ships from neutral countries, can sunk without warning. -
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Second Battle of Ypres begins
German surprise attacked the Allied soldiers along the Western Front. It is where the Germans first used there new weapon, 150 tons of lethal chlorine gas against two French colonial divisions at Ypres in Belgium. (http://www.history.com/this-day-in-history/second-battle-of-ypres-begins) -
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Battle of Verdun begins
This battle was the longest single battle of World War One. It happened for 10 months. A cathedral in Verdun, France was shot by the German Krupp 38-centimeter long-barreled gun. German death toll is 143,000 (out of 337,000 total casualties) and a the French death toll is 162,440 (out of 377,231), -
America enters World War I
The U.S. Senate voted 82 to 6 to declare war against Germany and America formally enters World War I. (http://www.history.com/this-day-in-history/america-enters-world-war-i) -
World War I ends
The Great War ended at the 11th hour on the 11th day of the 11th month of 1918. The Great war left 9 million soldiers dead and 21 million wounded, and at least 5 million civilians died from disease, starvation, or exposure. All nations agreed to stop fighting while the terms of peace were being negotiated. -
World War 1 ended
Germany and the Allied Nations signed the Treaty of Versailles, formally ending the war.
