Across
1
Alloy of copper and tin used in early tools
4
Military blockade of a fortified place
6
Period of ten years
9
Advanced stage of human society
10
Fundamental law of a nation
11
Government by the people
12
Practice of establishing foreign colonies
Down
2
Relating to the Middle Ages
3
Metal that replaced bronze in tools
5
Large territory under one ruler
7
Movement of people to new areas
8
Ancient Egyptian stone monument
13
Ancient empire that conquered much of Europe
14
Succession of rulers from same family