横向
1
Ancient empire that conquered much of Europe
4
Payment made to show submission
5
Government elected by the people
8
Territory controlled by another country
11
Person with no fixed home
13
Practice of establishing foreign colonies
14
Government ruled by a king or queen
纵向
2
Medieval land-for-service system
3
Long and distinct period of history
6
Ancient Egyptian stone monument
7
Fortified medieval residence
9
Alloy of copper and tin used in early tools
10
Handwritten historical document
12
Metal that replaced bronze in tools