When did World War 1 begin?
How many countries joined in World War 1?
Which country entered the war first?
- Germany
- Russia
- France
- United States
- Austria-Hungary
What was the main cause of World War 1?
- Nationalism
- Colonization
- Industrialization
- Militarism
What was the total number of casualties in World War 1?
- 20 million
- 30 million
- 40 million
- 50 million