What year did the great wall of china was built
- What year the great wall of china was built
- What the great wall of china was built for
- When did the great wall of china was built
- What year did the great wall of china get built
- What year did the great wall of china start being built
- What year did the great wall of china finished being built
- What year did the great wall of china start getting built
- What year was the great wall of china built and finished
- What dynasty did the great wall of china built
- What year was the great wall of china first built