横向
1
Belonging to a very old period
4
Long and distinct period of history
7
Exchange of goods between peoples
8
Payment made to show submission
9
Period of ten years
10
Relating to the Middle Ages
13
Fundamental law of a nation
纵向
2
Deadly epidemic disease
3
Legislative body in ancient Rome
5
Freedom from outside control
6
Person who buys and sells goods
11
Practice of establishing foreign colonies
12
Advanced stage of human society
14
Sudden overthrow of a government