Across
1
Ancient Mesoamerican civilization
3
Fundamental law of a nation
4
Advanced stage of human society
12
Period of ten years
13
Alloy of copper and tin used in early tools
14
Uprising against authority
Down
2
Union formed for mutual benefit
5
Government elected by the people
6
Practice of farming and growing food
7
Armed conflict between nations
8
Practice of establishing foreign colonies
9
Handwritten historical document
10
Person who travels to discover new lands
11
Fortified medieval residence