横向
1
Formal agreement between nations
3
Deadly epidemic disease
5
Exchange of goods between peoples
6
Ancient empire that conquered much of Europe
7
Advanced stage of human society
11
Person with no fixed home
12
Male monarch ruler
13
Freedom from outside control
14
Movement of people to new areas
纵向
2
Ancient Mesoamerican civilization
4
Collection of traditional stories
7
Fundamental law of a nation
8
Alloy of copper and tin used in early tools
9
Legislative body in ancient Rome
10
Practice of farming and growing food