横向
1
Roman arena fighter
6
Period of ten years
7
Person with no fixed home
8
Succession of rulers from same family
12
Legislative assembly of a country
纵向
2
Metal that replaced bronze in tools
3
Government ruled by a king or queen
4
Object made by humans from the past
5
Exchange of goods between peoples
9
Ancient Mesoamerican civilization
10
Ancient Egyptian ruler
11
Ancient empire that conquered much of Europe