横向
1
Long and distinct period of history
4
Person who buys and sells goods
5
Territory controlled by another country
6
Government ruled by a king or queen
7
Government elected by the people
8
Ancient Mesoamerican civilization
纵向
2
Union formed for mutual benefit
3
Person with no fixed home
9
Medieval religious military campaign
10
Practice of farming and growing food
11
Alloy of copper and tin used in early tools
12
Collection of traditional stories