横向
1
Long and distinct period of history
4
Sudden overthrow of a government
7
Person who travels to discover new lands
8
Uprising against authority
9
Military blockade of a fortified place
11
Fundamental law of a nation
12
Government by the people
纵向
2
Practice of establishing foreign colonies
3
Government elected by the people
5
Deadly epidemic disease
6
Succession of rulers from same family
10
Alloy of copper and tin used in early tools