横向
1
Person who buys and sells goods
4
Medieval land-for-service system
5
Formal agreement between nations
7
Large territory under one ruler
8
Period of one hundred years
10
Ancient empire that conquered much of Europe
11
Armored warrior of medieval times
12
Person owned as property
纵向
2
Government elected by the people
3
Alloy of copper and tin used in early tools
6
Government by the people
9
Ancient Egyptian picture writing
13
Exchange of goods between peoples