Across
1
Exchange of goods between peoples
5
Alloy of copper and tin used in early tools
7
Person who buys and sells goods
8
Legislative assembly of a country
9
Ancient Mesoamerican civilization
10
Person owned as property
11
Military blockade of a fortified place
Down
2
Fundamental law of a nation
3
Ancient empire that conquered much of Europe
4
Handwritten historical document
6
Period of ten years
12
Male monarch ruler