横向
1
Period of one hundred years
4
Advanced stage of human society
6
Sudden overthrow of a government
7
Formal agreement between nations
8
Alloy of copper and tin used in early tools
11
Succession of rulers from same family
14
Armed entry into another territory
15
Deadly epidemic disease
纵向
2
Collection of traditional stories
3
Person owned as property
5
Government ruled by a king or queen
9
Period of ten years
10
Movement of people to new areas
12
Medieval land-for-service system
13
Person who travels to discover new lands