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[Assassination of Archduke Ferdinand]https://www.history.com/news/the-assassination-of-archduke-franz-ferdinand-100-years-ago
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[Assassination of Archduke Ferdinand]https://www.history.com/news/the-assassination-of-archduke-franz-ferdinand-100-years-ago
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[Austria declares war on Serbia]https://www.loc.gov/law/help/digitized-books/world-war-i-declarations/foreign.php
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[Germany declares war on France]https://www.nationalgeographic.org/thisday/aug3/france-and-germany-declare-war/
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[First battle or Marne]https://www.iwm.org.uk/history/10-significant-battles-of-the-first-world-war
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[France declares war on Ottoman Empire]https://en.wikipedia.org/wiki/History_of_the_Ottoman_Empire_during_World_War_I
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[ The first battle of Ypres]https://yesterday.uktv.co.uk/warzone/world-war-one/article/western-front-key-wwi-battles/
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[Twenty one demands]https://www.britannica.com/event/Twenty-one-Demands
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[The Aremenian Genocide]https://www.google.com/amp/s/www.history.com/.amp/topics/world-war-i/armenian-genocide
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[Italy joins the allies]https://sites.google.com/a/ucps.k12.nc.us/wwi-y/a-world-prepares-for-war/italy-switches-sides
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[Battle of Gallipoli]https://www.historynet.com/costliest-battles-and-campaigns-of-world-war-i.htm
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[Battle of the Somme]https://www.historyhit.com/facts-about-the-major-battles-of-world-war-one/
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[The battle of Verdun]https://www.historyhit.com/facts-about-the-major-battles-of-world-war-one/
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[Armistice day]https://www.loc.gov/item/today-in-history/november-11/
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[Treaty of Versailles]https://encyclopedia.ushmm.org/content/en/article/treaty-of-versailles
