"Year 7 History": HTML5 Crossword

Across

1. Which Roman Emperor has a wall named after him? (7)
3. Timbuktu was a source of knowledge for which religion? (5)
5. Main crop produced at plantations in the southern USA? (6)
7. Person at the top of the explorers monument in Lisbon? (11)
9. Main crop produced in slave plantations in Jamaica? (5)
10. Name of a very famous rock formation in Australia? (5)
12. DR Congo was part of which country's european empire? (7)
13. Country where the Chichen Itza monument is located? (6)

Down

2. Which city has a part in Europe and a part in Asia? (8)
4. Famous slave ship that a movie was named after? (7)
6. Which city was the first outside Europe and North America to host the Olympics? (9)
8. City with the tallest building in the world? (5)
11. Which country is thought to have done the earliest printing? (5)
12. Which country has won the football world cup the most times? (6)