World War 1

Assassination of Archduke Ferdinard

Jun 28, 1914

Assassination of Archduke Ferdinard

Austria-Hungary demands Serbia arrest the leaders of the Black hand

Jul 23, 1914

https://en.wikipedia.org/wiki/Black_Hand_(Serbia)

Austria-Hungary declares war on Serbia

Jul 28, 1914

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

Germany declares war on Russia

Aug 1, 1914

https://www.youtube.com/watch?v=hwaKdvRB730

Germany declares war on France

Aug 3, 1914

https://www.history.com/this-day-in-history/germany-and-france-declare-war-on-each-other

Lord Kitchener calls for 100,000 men to join British Army

Aug 7, 1914

https://www.thestar.com/news/world/ww1/2014/08/10/kitchener_calls_for_another_100000_volunteers_ww1_dispatches.html

Battle of Marne begins

Sep 6, 1914

https://www.history.co.uk/this-day-in-history/06-september/first-battle-of-the-marne-begins

Sinking of the Lusitania

May 7, 1915

https://www.britannica.com/topic/Lusitania-British-ship

First Tank Demonstrated to British military leaders

Sep 11, 1915

http://www.iwm.org.uk/history/how-britain-invented-the-tank-in-the-first-world-war

Battle of Jutland

May 31, 1916

https://en.wikipedia.org/wiki/Battle_of_Jutland

Battle of the Somme

Nov 18, 1916

https://www.theguardian.com/world/video/2016/jul/01/the-somme-archive-video-of-one-of-the-bloodiest-battles-ever

Battle of the Gaza begins

Jan 19, 1917

https://www.washingtonpost.com/world/gaza-residents-scramble-to-make-most-of-five-hour-truce/2014/07/17/e5485fce-0d7e-11e4-8341-b8072b1e7348_story.html

2nd battle of the Marne

Jul 15, 1918

https://en.wikipedia.org/wiki/Second_Battle_of_the_Marne

Armistice Day

Nov 11, 1918

https://www.history.com/topics/holidays/history-of-veterans-day

Treaty of Versailles Signed

Jun 28, 1919

https://www.britannica.com/event/Treaty-of-Versailles-1919