Across
1
Union formed for mutual benefit
4
Person owned as property
5
Ancient Egyptian ruler
7
Alloy of copper and tin used in early tools
8
Exchange of goods between peoples
9
Armed conflict between nations
11
Payment made to show submission
Down
1
Object made by humans from the past
2
Armored warrior of medieval times
3
Ancient empire that conquered much of Europe
6
Armed entry into another territory
10
Large territory under one ruler
12
Military conflict or fight