横向
1
Large territory under one ruler
6
Government elected by the people
7
Practice of establishing foreign colonies
8
Fundamental law of a nation
10
Period of ten years
11
Ancient Egyptian ruler
13
Long and distinct period of history
14
Period of one hundred years
纵向
2
Handwritten historical document
3
Metal that replaced bronze in tools
4
Military blockade of a fortified place
5
Payment made to show submission
9
Government by the people
12
Person who travels to discover new lands
15
Person owned as property