When did the world war happened
- When did the world war 2 happened
- Where did world war 1 happened
- When the world war happened
- When did world war one happened
- When did the first world war happened
- When did the second world war happened
- When did the world war ii happened
- When did the world war 3 happened
- When did the world war two happened
- When did the third world war happened
- When did the 1st world war happened
- When did the first and second world war happened
- When did world war iii happened