横向
1
Movement of people to new areas
3
Ancient Mesoamerican civilization
4
Period of ten years
7
Exchange of goods between peoples
9
Long and distinct period of history
纵向
2
Ancient Egyptian stone monument
3
Relating to the Middle Ages
4
Succession of rulers from same family
5
Object made by humans from the past
6
Deadly epidemic disease
8
Belonging to a very old period
10
Large territory under one ruler
11
Person who travels to discover new lands