$^0$gc resources

$^1$https://www.britannica.com/event/World-War-I

$^2$https://www.loc.gov/collections/stars-and-stripes/articles-and-essays/a-world-at-war/timeline-1914-1921/

$^3$https://www.nationalgeographic.com/culture/article/world-war-i

$^4$https://www.chino.k12.ca.us/cms/lib/CA01902308/Centricity/Domain/5807/MANIA Causes of WWI.pdf

$^5$https://dictionary.cambridge.org/dictionary/english/alliance

$^6$https://www.merriam-webster.com/dictionary/imperialism

$^7$https://nzhistory.govt.nz/war/ottoman-empire/enters-the-war

$^8$https://www.open.edu/openlearn/history-the-arts/history/what-was-the-schlieffen-plan

$^9$https://www.allsaintsacademydunstable.org/wp-content/uploads/2016/09/09._why_did_the_schlieffen_plan_fail.pdf

$^{10}$https://www.historyhit.com/5-reasons-us-entered-ww1/

$^{11}$https://www.thoughtco.com/unrestricted-submarine-warfare-p2-2361020

$^{12}$https://www.theworldwar.org/learn/about-wwi/italy-enters-world-war-i

$^{13}$https://www.ducksters.com/history/world_war_i/trench_warfare.php

$^{14}$https://www.theworldwar.org/learn/peace/paris-peace-conference

$^{15}$https://www.khanacademy.org/humanities/us-history/rise-to-world-power/us-in-wwi/v/paris-peace-conference-and-treaty-of-versailles

$^{16}$https://unacademy.com/content/karnataka-psc/study-material/history/world-war-i-consequences/

$^{17}$https://www.historyonthenet.com/effects-of-world-war-1

$^{18}$https://www.english-online.at/history/world-war-1/consequences-of-the-war.htm