横向
1
Advanced stage of human society
3
Period of ten years
7
Person who travels to discover new lands
9
Ancient Mesoamerican civilization
10
Object made by humans from the past
11
Large territory under one ruler
12
Person with no fixed home
纵向
2
Male monarch ruler
3
Government by the people
4
Armed entry into another territory
5
Alloy of copper and tin used in early tools
6
Government elected by the people
8
Exchange of goods between peoples
13
Belonging to a very old period
14
Handwritten historical document