Question

Which event triggered the start of world war 1

A. The sinking of Maine
B. The sinking of the Lusitania
C. The assassination of Archduke Francis Ferdinand
D. The Zimmerman Note

Answer 1

Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, was assassinated along with his wife by a Serbian nationalist in Sarajevo, Bosnia.

Answer 2

C. The assassination of Archduke Francis Ferdinand fired "the shot heard round the world" which set off WW1