横向
1
Government by the people
5
Sudden overthrow of a government
6
Union formed for mutual benefit
7
Belonging to a very old period
纵向
1
Period of ten years
2
Large territory under one ruler
3
Military conflict or fight
4
Practice of establishing foreign colonies
8
Advanced stage of human society
9
Collection of traditional stories
10
Formal agreement between nations
11
Practice of farming and growing food
12
Deadly epidemic disease
13
Fortified medieval residence