横向
1
Belonging to a very old period
6
Military blockade of a fortified place
7
Person who travels to discover new lands
10
Person with no fixed home
11
Movement of people to new areas
纵向
2
Long and distinct period of history
3
Formal agreement between nations
4
Legislative body in ancient Rome
5
Territory controlled by another country
8
Deadly epidemic disease
9
Advanced stage of human society
11
Ancient Mesoamerican civilization
12
Uprising against authority