横向
1
Advanced stage of human society
3
Ancient empire that conquered much of Europe
7
Person owned as property
10
Period of one hundred years
纵向
2
Deadly epidemic disease
3
Government elected by the people
4
Uprising against authority
5
Fortified medieval residence
6
Metal that replaced bronze in tools
8
Person who buys and sells goods
9
Armed conflict between nations
11
Legislative assembly of a country