横向
1
Ancient empire that conquered much of Europe
4
Practice of establishing foreign colonies
5
Alloy of copper and tin used in early tools
6
Deadly epidemic disease
7
Metal that replaced bronze in tools
纵向
2
Ancient Egyptian picture writing
3
Payment made to show submission
8
Medieval land-for-service system
9
Long and distinct period of history
10
Person owned as property
11
Male monarch ruler