Across
1
Exchange of goods between peoples
3
Uprising against authority
4
Deadly epidemic disease
5
Ancient Egyptian stone monument
7
Ancient empire that conquered much of Europe
8
Union formed for mutual benefit
10
Medieval religious military campaign
Down
2
Alloy of copper and tin used in early tools
3
Sudden overthrow of a government
6
Period of ten years
9
Government elected by the people
11
Medieval land-for-service system