-
(Assassination of Archduke Ferdinand)(https://www.biography.com/people/franz-ferdinand-9300680)
-
(germany declares war on Belgium)(https://www.thestar.com/news/world/ww1/2014/08/03/germany_declares_war_on_belgium_ww1_dispatches.html)
-
(japan declares war on germany)(https://worldhistoryproject.org/1914/8/23/japan-declares-war-on-germany)
-
(Christmas truce)(http://time.com/3643889/christmas-truce-1914/)
-
(sinking of Lusitania)(http://www.eyewitnesstohistory.com/snpwwi2.htm)
-
(Italy declares war on germany)(http://today-in-wwi.tumblr.com/post/149620728526/italy-declares-war-on-germany)
-
(battle of Verdun)(https://www.firstworldwar.com/battles/verdun.htm)
-
(Zimmermann telegram)(https://www.archives.gov/education/lessons/zimmermann)
-
-
(battle of Passchendaele)(https://www.thoughtco.com/battle-of-passchendaele-third-ypres-2360465)
-
(battle of cambrai)(https://www.britannica.com/event/Battle-of-Cambrai-1917)
-
(hundred days offensive)(https://schoolworkhelper.net/the-“hundred-days”-offensive-world-war-one/)
-
(armistice day)(https://www.tenfactsabout.co.uk/0002armistice.htm)
-
(treaty of Versailles)(https://encyclopedia.ushmm.org/content/en/article/treaty-of-Versailles)
