横向
1
Ancient Mesoamerican civilization
3
Freedom from outside control
4
Government elected by the people
7
Ancient Egyptian stone monument
8
Person owned as property
11
Sudden overthrow of a government
12
Union formed for mutual benefit
13
Succession of rulers from same family
纵向
2
Practice of establishing foreign colonies
5
Object made by humans from the past
6
Practice of farming and growing food
9
Medieval religious military campaign
10
Alloy of copper and tin used in early tools