横向
1
Metal that replaced bronze in tools
3
Formal agreement between nations
4
Roman arena fighter
8
Freedom from outside control
11
Armed conflict between nations
12
Armed entry into another territory
13
Person with no fixed home
纵向
2
Belonging to a very old period
5
Movement of people to new areas
6
Sudden overthrow of a government
7
Period of one hundred years
9
Male monarch ruler
10
Military conflict or fight
14
Long and distinct period of history