横向
1
Exchange of goods between peoples
4
Period of ten years
5
Practice of farming and growing food
6
Freedom from outside control
13
Uprising against authority
纵向
2
Medieval land-for-service system
3
Person who travels to discover new lands
5
Object made by humans from the past
7
Fundamental law of a nation
8
Large territory under one ruler
9
Person with no fixed home
10
Military conflict or fight
11
Deadly epidemic disease
12
Relating to the Middle Ages