When did the first world
- when did the first world war started and ended
- when did the first world war begin for britain
- when did the first world war finish
- when did the first world war
- when did the first world war happen
- when did the first world war break out
- when did the first world war began
- when did the first world war take place
- when did the first world war end
- when did the first world war start
