横向
1
Medieval land-for-service system
5
Government by the people
6
Government elected by the people
7
Practice of farming and growing food
8
Movement of people to new areas
14
Succession of rulers from same family
纵向
2
Person with no fixed home
3
Alloy of copper and tin used in early tools
4
Roman arena fighter
8
Handwritten historical document
9
Advanced stage of human society
10
Government ruled by a king or queen
11
Formal agreement between nations
12
Legislative assembly of a country
13
Sudden overthrow of a government