横向
1
Exchange of goods between peoples
3
Ancient Mesoamerican civilization
4
Object made by humans from the past
7
Practice of farming and growing food
8
Belonging to a very old period
10
Person who travels to discover new lands
11
Person who buys and sells goods
纵向
2
Ancient Egyptian ruler
3
Relating to the Middle Ages
5
Payment made to show submission
6
Government elected by the people
9
Person with no fixed home