https://www.archives.gov/topics/wwi#event-/timeline/item/archduke-assassination
https://en.m.wikipedia.org/wiki/World_War_I
https://www.washingtonpost.com/history/2018/11/02/marines-mysterious-death-world-war-is-final-days-still-haunts-his-family/?noredirect=on&utm_term=.76e2c7a1d81d
https://www.nytimes.com/2018/11/09/magazine/remembering-world-war-i-newsletter.html
https://mobile.abc.net.au/news/2018-11-11/world-war-one-what-if-it-happened-today/10477874?pfmredir=sm
https://www.britannica.com/place/Italy/World-War-I-and-fascism
https://m.france24.com/en/tag/world-war-i/
https://www.history.com/topics/world-war-i/world-war-i-history