横向
1
Medieval land-for-service system
4
Formal agreement between nations
6
Medieval religious military campaign
8
Person with no fixed home
10
Union formed for mutual benefit
11
Uprising against authority
纵向
2
Belonging to a very old period
3
Freedom from outside control
5
Roman arena fighter
7
Government ruled by a king or queen
9
Ancient Mesoamerican civilization
12
Person owned as property
13
Long and distinct period of history