横向
1
Practice of farming and growing food
6
Object made by humans from the past
7
Movement of people to new areas
10
Payment made to show submission
纵向
2
Military conflict or fight
3
Relating to the Middle Ages
4
Person who travels to discover new lands
5
Sudden overthrow of a government
8
Ancient empire that conquered much of Europe
9
Armed entry into another territory
11
Union formed for mutual benefit
12
Ancient Mesoamerican civilization
13
Formal agreement between nations