When did first world war began
- When first world war began
- When did the first world war began in europe
- When did the first world war began and end
- When did the first world war begin for britain
- When did the first world war officially began
- When the first world war began the army's highest ranking black officer was
- When the first world war began in late summer 1914 who was the president of the united states
- When did the first world war began and how long did it last