横向
1
Medieval land-for-service system
4
Medieval religious military campaign
5
Person who buys and sells goods
7
Metal that replaced bronze in tools
11
Practice of establishing foreign colonies
12
Succession of rulers from same family
纵向
2
Roman arena fighter
3
Belonging to a very old period
5
Relating to the Middle Ages
6
Territory controlled by another country
8
Formal agreement between nations
9
Military conflict or fight
10
Sudden overthrow of a government
13
Armed conflict between nations