WW1 Begins

Assassination of Archduke Ferdinand

Jun 28, 1914

https://www.ducksters.com/history/world_war_i/assassination_of_archduke_ferdinand.php

WW1 Begins

Jul 28, 1914

https://www.history.com/topics/world-war-i/world-war-i-history

Lusitania sinks

May 7, 1915

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

Verdun

Feb 21, 1916

http://www.ww1gameseries.com/verdun/

Somme

Jul 1, 1916

https://www.iwm.org.uk/history/5-things-you-need-to-know-about-the-battle-of-the-somme

Russian Revolution

1917

https://www.nationalgeographic.com/history/magazine/2017/09-10/russian-revolution-history-lenin/

Zimmermann Note

Feb 24, 1917

https://www.archives.gov/education/lessons/zimmermann

U.S. enters war

Apr 16, 1917

http://www.americaslibrary.gov/jb/jazz/jb_jazz_wwi_1.html

Breakfast

Sep 7, 1917

http://theconversation.com/biscuit-for-breakfast-trench-warfare-was-hard-on-soldiers-teeth-64457

Russia withdraws from war

Mar 3, 1918

https://www.facinghistory.org/holocaust-and-human-behavior/chapter-3/russia-quits-war

The World War 1 ENDED

Jun 28, 1918

http://www.americaslibrary.gov/jb/jazz/jb_jazz_ww1_1.html

Gas Poisoning in Warfare

Aug 27, 1918

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3148621/

Armistice Day

Nov 11, 1918

https://www.historyextra.com/period/first-world-war/ww1-armistice-day-remembrance-sunday-poppies-silence-commemoration/

Treaty of Versailles

Jun 28, 1919

http://en.chateauversailles.fr/discover/history/key-dates/treaty-versailles-1919