横向
1
Movement of people to new areas
5
Medieval religious military campaign
6
Fortified medieval residence
7
Ancient empire that conquered much of Europe
8
Person with no fixed home
9
Period of one hundred years
11
Belonging to a very old period
纵向
2
Metal that replaced bronze in tools
3
Freedom from outside control
4
Military blockade of a fortified place
5
Advanced stage of human society
10
Practice of establishing foreign colonies