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| | World Almanac for Kids |
 | | WORLD WAR I, military conflict, from 1914 to 1918, that began as a local European war between Austria-Hungary and Serbia on July 28, 1914; was transformed into a general European struggle by declaration of war against Russia on Aug. 1, 1914; and eventually became a global war involving 32 nations. |
 | | The immediate cause of the war between Austria-Hungary and Serbia was the assassination on June 28, 1914, at Sarajevo in Bosnia (together with Hercegovina, then part of Austria-Hungary), of Archduke Francis Ferdinand, heir-presumptive to the Austrian and Hungarian thrones, by Gavrilo Princip (1893?–1918), a Serb nationalist. |
 | | The underlying causes of World War I were the intense nationalism that permeated Europe throughout the 19th and into the 20th century, the political and economic rivalry among nations, and the military buildup that occurred after 1871, when Germany emerged as a great world power. |
| www.worldalmanacforkids.com /explore/us_history/worldwar1.html (4451 words) |
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