横向
1
Sudden overthrow of a government
3
Long and distinct period of history
5
Period of one hundred years
6
Person who travels to discover new lands
7
Handwritten historical document
纵向
1
Government elected by the people
2
Government by the people
4
Succession of rulers from same family
7
Ancient Mesoamerican civilization
8
Relating to the Middle Ages
9
Movement of people to new areas