横向
1
Period of ten years
5
Alloy of copper and tin used in early tools
6
Fortified medieval residence
7
Freedom from outside control
8
Exchange of goods between peoples
10
Armed conflict between nations
11
Military blockade of a fortified place
纵向
2
Deadly epidemic disease
3
Practice of farming and growing food
4
Person with no fixed home
9
Advanced stage of human society
12
Payment made to show submission
13
Government elected by the people