横向
1
Person owned as property
4
Ancient empire that conquered much of Europe
5
Roman arena fighter
6
Payment made to show submission
7
Sudden overthrow of a government
9
Ancient Mesoamerican civilization
12
Government ruled by a king or queen
纵向
2
Relating to the Middle Ages
3
Government by the people
8
Military blockade of a fortified place
10
Person with no fixed home
11
Metal that replaced bronze in tools