横向
1
Deadly epidemic disease
4
Movement of people to new areas
6
Armed conflict between nations
8
Payment made to show submission
9
Union formed for mutual benefit
10
Object made by humans from the past
纵向
2
Person who travels to discover new lands
3
Medieval land-for-service system
4
Collection of traditional stories
5
Ancient Mesoamerican civilization
7
Legislative body in ancient Rome
11
Succession of rulers from same family