横向
1
Long and distinct period of history
2
Relating to the Middle Ages
6
Alloy of copper and tin used in early tools
8
Armed conflict between nations
9
Practice of establishing foreign colonies
12
Legislative assembly of a country
纵向
2
Ancient Mesoamerican civilization
3
Military blockade of a fortified place
4
Period of one hundred years
5
Person who buys and sells goods
7
Period of ten years
10
Payment made to show submission
11
Union formed for mutual benefit
13
Handwritten historical document