Across
1
Government elected by the people
4
Formal agreement between nations
7
Fundamental law of a nation
8
Relating to the Middle Ages
9
Fortified medieval residence
11
Large territory under one ruler
12
Ancient Mesoamerican civilization
Down
2
Military conflict or fight
3
Person owned as property
5
Ancient Egyptian ruler
6
Metal that replaced bronze in tools
9
Territory controlled by another country
10
Advanced stage of human society