Across
1
Exchange of goods between peoples
3
Ancient Egyptian stone monument
4
Alloy of copper and tin used in early tools
6
Roman arena fighter
7
Freedom from outside control
10
Object made by humans from the past
12
Payment made to show submission
Down
2
Relating to the Middle Ages
5
Period of ten years
8
Ancient empire that conquered much of Europe
9
Practice of farming and growing food
11
Advanced stage of human society