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The assassination of Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife Sophie, Duchess of Hohenberg, occurred on 28 June 1914 in Sarajevo when they were mortally wounded by Gavrilo Princip.
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World War 1 was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
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The sinking of the Cunard ocean liner RMS Lusitania occurred on Friday, 7 May 1915 during the First World War, as Germany waged submarine warfare against the United Kingdom which had implemented a naval blockade of Germany.
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The Zimmermann Telegram was an internal diplomatic communication issued from the German Foreign Office early in 1917 that proposed a military alliance between Germany and Mexico in the event of the United States entering World War I against Germany. The proposal was intercepted and decoded by British intelligence.
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Following Germany's resumption of unrestricted submarine warfare on February 1, 1917, countries tried to limit or even abolish submarines.
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On the April the 6, 1917 the us declared war on Germany.
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The total number of casualties in World War I, both military and civilian, were about 37 million: 16 million deaths and 21 million wounded. The total number of deaths includes 9.7 million military personnel and about 6.8 million civilians.
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The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers.
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The depression started in the United States after a major fall in stock prices.
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On a dark, rainy Sunday, April 10, 1932, the people voted, they gave Hitler 13,418,547 or 36% of votes.
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World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier.
