横向
1
Ancient empire that conquered much of Europe
4
Legislative body in ancient Rome
6
Male monarch ruler
7
Long and distinct period of history
8
Succession of rulers from same family
10
Government elected by the people
纵向
2
Legislative assembly of a country
3
Person who travels to discover new lands
5
Movement of people to new areas
9
Metal that replaced bronze in tools
11
Territory controlled by another country
12
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