Across
1
Freedom from outside control
6
Armed entry into another territory
7
Ancient Mesoamerican civilization
10
Territory controlled by another country
Down
2
Roman arena fighter
3
Exchange of goods between peoples
4
Succession of rulers from same family
5
Practice of establishing foreign colonies
8
Alloy of copper and tin used in early tools
9
Fundamental law of a nation
11
Union formed for mutual benefit
12
Belonging to a very old period