横向
1
Period of ten years
4
Movement of people to new areas
5
Ancient empire that conquered much of Europe
9
Armed conflict between nations
10
Territory controlled by another country
11
Roman arena fighter
12
Large territory under one ruler
纵向
2
Deadly epidemic disease
3
Handwritten historical document
6
Metal that replaced bronze in tools
7
Relating to the Middle Ages
8
Armed entry into another territory