横向
1
Person with no fixed home
4
Alloy of copper and tin used in early tools
5
Formal agreement between nations
6
Ancient Egyptian picture writing
12
Armed entry into another territory
13
Government by the people
纵向
2
Armed conflict between nations
3
Person who travels to discover new lands
7
Belonging to a very old period
8
Person who buys and sells goods
9
Medieval land-for-service system
10
Metal that replaced bronze in tools
11
Succession of rulers from same family