横向
1
Government elected by the people
4
Exchange of goods between peoples
5
Movement of people to new areas
7
Armed conflict between nations
8
Government by the people
9
Metal that replaced bronze in tools
10
Fortified medieval residence
11
Ancient Egyptian stone monument
纵向
2
Practice of establishing foreign colonies
3
Person who buys and sells goods
6
Government ruled by a king or queen
10
Territory controlled by another country
12
Armed entry into another territory
13
Sudden overthrow of a government
14
Large territory under one ruler