Across
1
Medieval land-for-service system
4
Legislative body in ancient Rome
5
Object made by humans from the past
6
Period of ten years
7
Alloy of copper and tin used in early tools
9
Exchange of goods between peoples
Down
2
Armed entry into another territory
3
Person who buys and sells goods
6
Government by the people
8
Military conflict or fight
10
Union formed for mutual benefit