横向
1
Freedom from outside control
9
Long and distinct period of history
10
Exchange of goods between peoples
11
Person who buys and sells goods
纵向
2
Large territory under one ruler
3
Relating to the Middle Ages
4
Alloy of copper and tin used in early tools
5
Ancient Egyptian stone monument
6
Period of one hundred years
7
Object made by humans from the past
8
Person with no fixed home