横向
1
Government by the people
5
Ancient empire that conquered much of Europe
6
Sudden overthrow of a government
7
Long and distinct period of history
8
Deadly epidemic disease
11
Alloy of copper and tin used in early tools
纵向
2
Movement of people to new areas
3
Union formed for mutual benefit
4
Ancient Egyptian ruler
9
Fortified medieval residence
10
Formal agreement between nations