横向
1
Exchange of goods between peoples
3
Handwritten historical document
5
Roman arena fighter
8
Sudden overthrow of a government
9
Period of one hundred years
12
Succession of rulers from same family
纵向
2
Government by the people
4
Person who travels to discover new lands
6
Deadly epidemic disease
7
Practice of farming and growing food
10
Payment made to show submission
11
Movement of people to new areas