横向
1
Roman arena fighter
5
Territory controlled by another country
6
Handwritten historical document
7
Male monarch ruler
8
Metal that replaced bronze in tools
10
Large territory under one ruler
11
Payment made to show submission
12
Succession of rulers from same family
纵向
2
Union formed for mutual benefit
3
Person with no fixed home
4
Government ruled by a king or queen
5
Advanced stage of human society
9
Armed conflict between nations