横向
1
Roman arena fighter
7
Belonging to a very old period
8
Person who buys and sells goods
9
Exchange of goods between peoples
10
Military conflict or fight
11
Payment made to show submission
12
Armored warrior of medieval times
纵向
2
Formal agreement between nations
3
Practice of farming and growing food
4
Movement of people to new areas
5
Handwritten historical document
6
Long and distinct period of history
13
Advanced stage of human society