横向
1
Ancient empire that conquered much of Europe
2
Long and distinct period of history
4
Legislative body in ancient Rome
5
Period of ten years
10
Sudden overthrow of a government
纵向
2
Person who travels to discover new lands
3
Large territory under one ruler
6
Medieval religious military campaign
7
Succession of rulers from same family
8
Person who buys and sells goods
9
Freedom from outside control