Which country did the first world war
- Which did the first world war take place
- When did the first world war began
- Which country won the first world war
- Which country started the first world war
- Which year did the first world war start
- Which country initiated the first world war
- Which year did the first world war end
- In what year did the first world war began
- Which year did the first world war ended
- Which year did the first world war began
- Which country withdrew the first world war and why
- Which country involved in the first world war
- Which country the first world war