横向
1
Movement of people to new areas
5
Government elected by the people
6
Long and distinct period of history
9
Object made by humans from the past
14
Handwritten historical document
纵向
2
Union formed for mutual benefit
3
Metal that replaced bronze in tools
4
Armored warrior of medieval times
7
Succession of rulers from same family
8
Exchange of goods between peoples
10
Collection of traditional stories
11
Armed entry into another territory
12
Legislative assembly of a country
13
Deadly epidemic disease