横向
1
Person who travels to discover new lands
3
Male monarch ruler
5
Union formed for mutual benefit
7
Person who buys and sells goods
8
Military conflict or fight
11
Armed entry into another territory
纵向
2
Military blockade of a fortified place
4
Long and distinct period of history
5
Object made by humans from the past
6
Deadly epidemic disease
9
Ancient Egyptian picture writing
10
Ancient empire that conquered much of Europe
12
Freedom from outside control