War broke out in Sarajevo Bosnia when Austro-Hungarian archduke was assassinated.?

The assassination of Archduke Franz Ferdinand of Austria on June 28, 1914, in Sarajevo was a pivotal event that triggered World War I. The archduke's murder by Gavrilo Princip, a Bosnian Serb nationalist, heightened tensions between Austria-Hungary and Serbia, leading to a series of ultimatums and mobilizations. This conflict quickly escalated as alliances were activated, drawing multiple nations into a global war. Ultimately, the assassination symbolized the deep-rooted ethnic and political tensions in the Balkans that contributed to the outbreak of the war.