横向
1
Period of ten years
5
Military blockade of a fortified place
6
Government ruled by a king or queen
7
Alloy of copper and tin used in early tools
8
Belonging to a very old period
10
Deadly epidemic disease
11
Person with no fixed home
12
Metal that replaced bronze in tools
纵向
2
Freedom from outside control
3
Practice of establishing foreign colonies
4
Sudden overthrow of a government
9
Period of one hundred years