Across
1
Ancient empire that conquered much of Europe
4
Belonging to a very old period
5
Period of one hundred years
6
Deadly epidemic disease
7
Advanced stage of human society
8
Military blockade of a fortified place
9
Alloy of copper and tin used in early tools
Down
2
Fundamental law of a nation
3
Fortified medieval residence
10
Person owned as property
11
Government elected by the people