横向
1
Metal that replaced bronze in tools
4
Person who buys and sells goods
5
Territory controlled by another country
6
Military conflict or fight
7
Armored warrior of medieval times
8
Medieval religious military campaign
10
Alloy of copper and tin used in early tools
纵向
2
Freedom from outside control
3
Practice of farming and growing food
9
Advanced stage of human society
11
Ancient Mesoamerican civilization
12
Person who travels to discover new lands
13
Legislative assembly of a country