横向
1
Ancient Mesoamerican civilization
3
Alloy of copper and tin used in early tools
5
Period of ten years
7
Object made by humans from the past
8
Sudden overthrow of a government
纵向
2
Ancient empire that conquered much of Europe
4
Belonging to a very old period
6
Large territory under one ruler
9
Movement of people to new areas
10
Legislative body in ancient Rome