横向
1
Medieval land-for-service system
5
Exchange of goods between peoples
6
Advanced stage of human society
7
Government elected by the people
9
Sudden overthrow of a government
10
Period of ten years
纵向
2
Ancient empire that conquered much of Europe
3
Uprising against authority
4
Government by the people
8
Person owned as property
11
Male monarch ruler
12
Handwritten historical document