横向
1
Relating to the Middle Ages
5
Movement of people to new areas
6
Sudden overthrow of a government
10
Object made by humans from the past
纵向
2
Ancient Egyptian stone monument
3
Exchange of goods between peoples
4
Union formed for mutual benefit
5
Government ruled by a king or queen
7
Alloy of copper and tin used in early tools
8
Advanced stage of human society
9
Person owned as property