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World War I (1914-1918)
World War I began on July 28, 1914, when Austria-Hungary declared war on Serbia. This seemingly small conflict between two countries spread rapidly: soon, Germany, Russia, Great Britain, and France were all drawn into the war, largely because... More »
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en.wikipedia.org/wiki/Causes_of_World_War_I

The causes of World War I remain controversial and debated questions. The war began in the ... This crisis was triggered by the assassination of Archduke Franz Ferdinand of Austria by an ethnic Serb who had been supported by a nationalist  ...

www.thoughtco.com/causes-that-led-to-world-war-i-105515

Jul 10, 2017 ... What were the main causes of World War I? Learn about how mutual defense alliances, imperialism, militarism, and nationalism all played a ...

www.historyonthenet.com/world-war-one-causes-2

The first world war began in August 1914. It was directly triggered by the assassination of the Austrian archduke, Franz Ferdinand and his wife, on 28th June ...

www.historyhome.co.uk/europe/causeww1.htm

Apr 20, 2016 ... The direct cause of WWI was the assassination of Archduke Franz ... Before 1914 Europe's main powers were divided into two armed camps by ...

www.ducksters.com/history/world_war_i/causes_of_ww1.php

There were many factors that led up to the start of World War I in Europe. A lot of these factors were rooted in the deep history of the old powers of Europe ...

madefrom.com/history/world-war-one/causes-world-war-one

Jul 24, 2014 ... The 4 M-A-I-N Causes Of World War One. By Alex ... Colonies were units of exchange that could be bargained without significantly affecting the ...

www.historylearningsite.co.uk/world-war-one/causes-of-world-war-one/causes-of-world-war-one

The causes of World War One are complicated and unlike the causes of World ... and Italy) promised to help the others if they were attacked by another country.

www.bbc.co.uk/schools/gcsebitesize/history/mwh/ir1/underlyingcausesrev1.shtml

The assassination of Archduke Franz Ferdinand signalled the rapid slide into world war, but this wasn't the only cause. There were underlying causes in the ...

www.history.com/topics/world-war-i/outbreak-of-world-war-i

Find out more about the history of Outbreak of World War I, including videos, ... By 1914, however, a multitude of forces were threatening to tear it apart.