横向
1
Long and distinct period of history
4
Movement of people to new areas
5
Ancient empire that conquered much of Europe
6
Relating to the Middle Ages
7
Government ruled by a king or queen
8
Freedom from outside control
纵向
2
Period of one hundred years
3
Person with no fixed home
9
Belonging to a very old period
10
Advanced stage of human society
11
Person owned as property
12
Sudden overthrow of a government