横向
1
Formal agreement between nations
4
Ancient Mesoamerican civilization
5
Movement of people to new areas
6
Medieval land-for-service system
7
Handwritten historical document
8
Armed entry into another territory
9
Union formed for mutual benefit
纵向
2
Government elected by the people
3
Deadly epidemic disease
4
Collection of traditional stories
5
Person who buys and sells goods
10
Belonging to a very old period