Answer:
The assassination of Archduke Franz Ferdinand of Austria-Hungary in 1914 was a key event that led to the outbreak of World War I. The Archduke's assassination led to a series of events that ultimately resulted in a world war because it was the catalyst that set off a chain of alliances and treaty obligations among the major European powers.
At the time, Europe was divided into two main alliances: the Triple Alliance (consisting of Germany, Austria-Hungary, and Italy) and the Triple Entente (consisting of France, Russia, and Great Britain). When Austria-Hungary declared war on Serbia in response to the assassination of the Archduke, it triggered a series of alliances and treaty obligations that drew the other major European powers into the conflict.
As a result, the assassination of the Archduke of Austria-Hungary led to a world war because it set off a chain of events that ultimately involved the major European powers in a conflict that escalated into a global war.
Step-by-step explanation: