The assassination of Archduke Franz Ferdinand sparked the beginning of World War I in 1914.
The assassination of Archduke Franz Ferdinand of Austria-Hungary in the region of Bosnia is the event that is said to have "sparked" the start of World War I in 1914. It led to a chain of declarations of war, eventually involving many nations in the conflict.
Germany, Austria-Hungary, and Turkey fought against Britain, France, Italy, and Russia. The conflict escalated due to a mix of geopolitical ambitions, rising nationalism, and a complex web of military alliances.
The sinking of the R.M.S Lusitania by a German u-boat and the interception of the Zimmerman Note were significant events during the war, but the assassination is considered the primary trigger.
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