What conflict is often considered the 'spark' that ignited World War I?

Quiz Options

• The assassination of Archduke Franz Ferdinand
• The sinking of the Lusitania
• The Battle of the Somme
• The Schlieffen Plan

Explanation

The assassination of Archduke Franz Ferdinand of Austria-Hungary in Sarajevo on June 28, 1914, is widely seen as the immediate trigger for the outbreak of World War I.