横向
1
Armed conflict between nations
3
Government elected by the people
4
Legislative body in ancient Rome
8
Sudden overthrow of a government
10
Large territory under one ruler
11
Freedom from outside control
12
Medieval land-for-service system
纵向
2
Period of ten years
4
Person owned as property
5
Armored warrior of medieval times
6
Ancient Mesoamerican civilization
7
Deadly epidemic disease
9
Metal that replaced bronze in tools