横向
1
Practice of farming and growing food
7
Medieval religious military campaign
8
Ancient Mesoamerican civilization
9
Government elected by the people
10
Sudden overthrow of a government
纵向
2
Metal that replaced bronze in tools
3
Advanced stage of human society
4
Union formed for mutual benefit
5
Long and distinct period of history
6
Object made by humans from the past
11
Ancient Egyptian picture writing