Across
1
Metal that replaced bronze in tools
4
Armed entry into another territory
7
Alloy of copper and tin used in early tools
8
Exchange of goods between peoples
Down
2
Ancient empire that conquered much of Europe
3
Armored warrior of medieval times
5
Government elected by the people
6
Succession of rulers from same family
9
Military blockade of a fortified place
10
Fundamental law of a nation