横向
1
Deadly epidemic disease
4
Armored warrior of medieval times
5
Movement of people to new areas
6
Freedom from outside control
7
Exchange of goods between peoples
11
Ancient Egyptian stone monument
12
Alloy of copper and tin used in early tools
纵向
2
Large territory under one ruler
3
Advanced stage of human society
8
Succession of rulers from same family
9
Practice of farming and growing food
10
Handwritten historical document