横向
1
Formal agreement between nations
4
Fortified medieval residence
6
Exchange of goods between peoples
8
Armed entry into another territory
9
Fundamental law of a nation
纵向
2
Metal that replaced bronze in tools
3
Military conflict or fight
5
Ancient Egyptian stone monument
7
Succession of rulers from same family
10
Person who buys and sells goods
11
Large territory under one ruler
12
Movement of people to new areas