横向
1
Long and distinct period of history
4
Person owned as property
5
Armed conflict between nations
7
Belonging to a very old period
8
Government elected by the people
10
Practice of farming and growing food
11
Handwritten historical document
12
Alloy of copper and tin used in early tools
纵向
2
Practice of establishing foreign colonies
3
Ancient empire that conquered much of Europe
6
Exchange of goods between peoples
9
Military blockade of a fortified place
13
Relating to the Middle Ages