World War I

Assassination of Archduke Ferdinand

Jun 28, 1914

Archduke Ferdinand

August 23, 1914. Japan declares war on Germany.

Period: Jul 20, 1914 to Aug 23, 1914

https://www.history.com/this-day-in-history/japan-gives-ultimatum-to-germany

Austria declares war on Japan.

Period: Jul 25, 1914 to Aug 25, 1914

http://www.historyplace.com/worldhistory/firstworldwar/index-1914.html

August 6, 1914. Austria declares war on Russia.

Period: Jul 28, 1914 to Aug 6, 1914

https://www.history.com/this-day-in-history/austria-hungary-declares-war-on-serbia

Germany declares war on Russia

Aug 1, 1914

[Germany declares war on Russia]http://www.historyplace.com/worldhistory/firstworldwar/index-1914.html

Battle of the Somme

Jul 1, 1916

https://www.history.com/topics/world-war-i/battle-of-the-somme

U.S. declares war on Austria-Hungary.

Dec 7, 1917

https://history.state.gov/milestones/1914-1920/wwi

Treaty of Versailles.

Jun 28, 1919

https://www.youtube.com/watch?v=vrYhLNQMRro