When did the first world war start and end
- When the first world war start and end
- When did the first world war started and ended
- When did the first world war begin and end
- When did the first world war end
- When did the first world war ended
- When did the first world war end date
- When did the first world war come to end
- When did the first world war 1 start and end
- What year did the first world war start and end