横向
1
Practice of establishing foreign colonies
6
Uprising against authority
8
Payment made to show submission
9
Medieval land-for-service system
纵向
2
Person who travels to discover new lands
3
Succession of rulers from same family
4
Metal that replaced bronze in tools
5
Large territory under one ruler
7
Formal agreement between nations
10
Belonging to a very old period
11
Ancient Egyptian ruler
12
Alloy of copper and tin used in early tools
13
Collection of traditional stories