横向
1
Long and distinct period of history
3
Roman arena fighter
4
Government elected by the people
6
Sudden overthrow of a government
8
Payment made to show submission
12
Practice of farming and growing food
纵向
2
Handwritten historical document
5
Metal that replaced bronze in tools
7
Territory controlled by another country
9
Person who travels to discover new lands
10
Person with no fixed home
11
Armed entry into another territory