横向
1
Deadly epidemic disease
5
Fortified medieval residence
6
Armed conflict between nations
7
Belonging to a very old period
8
Territory controlled by another country
9
Ancient Mesoamerican civilization
纵向
2
Handwritten historical document
3
Movement of people to new areas
4
Exchange of goods between peoples
10
Succession of rulers from same family
11
Uprising against authority
12
Medieval religious military campaign
13
Advanced stage of human society
14
Ancient empire that conquered much of Europe