What was the main reason for the outbreak of World War I, which began in 1914?
Category: History · Difficulty: hard
Hint: This incident triggered a series of alliances and tensions.
Answer
Assassination of Archduke Franz Ferdinand
Explanation
The assassination of Archduke Franz Ferdinand in 1914 set off a chain reaction of alliances that led to the war.
This is a hard history riddle — a tricky one that takes a little thought. The answer is Assassination of Archduke Franz Ferdinand.
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