Important events
Across
- 2. the first world war which was one of the deadliest
- 3. largest invasion force
- 4. the seconf world war which was a global conflict
- 6. the genocide of European Jews
- 7. a period of political and social revolution
Down
- 1. a period of economic depression
- 5. a revolution in Russia led by the Bolshevik Party of Vladimir Lenin