Multiple choice

The immediate cause of WWI was...

  1. The signing of the Treaty of Versaille

  2. The invasion of Poland

  3. The assassination of Franz Ferdinand

  4. Kristallnacht

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The assassination of Archduke Franz Ferdinand of Austria-Hungary by a Serbian nationalist in June 1914 triggered a chain reaction of alliance commitments that directly led to World War I. The Treaty of Versailles ended WWI, while the invasion of Poland sparked WWII.