横向
1
Armed entry into another territory
5
Formal agreement between nations
9
Deadly epidemic disease
12
Metal that replaced bronze in tools
纵向
2
Ancient Egyptian ruler
3
Period of one hundred years
4
Object made by humans from the past
6
Practice of establishing foreign colonies
7
Handwritten historical document
8
Person who buys and sells goods
10
Exchange of goods between peoples
11
Freedom from outside control