横向
1
Territory controlled by another country
3
Person owned as property
4
Roman arena fighter
5
Government ruled by a king or queen
6
Military conflict or fight
8
Succession of rulers from same family
纵向
2
Fundamental law of a nation
3
Legislative body in ancient Rome
7
Medieval land-for-service system
9
Ancient empire that conquered much of Europe
10
Long and distinct period of history