横向
1
Fundamental law of a nation
6
Government elected by the people
7
Government by the people
8
Medieval land-for-service system
纵向
1
Practice of establishing foreign colonies
2
Handwritten historical document
3
Person who travels to discover new lands
4
Payment made to show submission
5
Armored warrior of medieval times
9
Advanced stage of human society
10
Union formed for mutual benefit