横向
1
Movement of people to new areas
5
Armed conflict between nations
7
Uprising against authority
8
Belonging to a very old period
9
Payment made to show submission
14
Medieval land-for-service system
15
Ancient Mesoamerican civilization
纵向
2
Armed entry into another territory
3
Advanced stage of human society
4
Fundamental law of a nation
6
Legislative assembly of a country
10
Military conflict or fight
11
Medieval religious military campaign
12
Person owned as property
13
Military blockade of a fortified place