横向
1
Sudden overthrow of a government
6
Legislative assembly of a country
7
Ancient Mesoamerican civilization
8
Person who buys and sells goods
9
Freedom from outside control
纵向
2
Armed entry into another territory
3
Formal agreement between nations
4
Alloy of copper and tin used in early tools
5
Payment made to show submission
10
Medieval land-for-service system
11
Medieval religious military campaign
12
Advanced stage of human society
13
Belonging to a very old period