Across
1
Government elected by the people
4
Person owned as property
6
Medieval land-for-service system
8
Armored warrior of medieval times
9
Period of ten years
12
Advanced stage of human society
13
Government by the people
Down
2
Military blockade of a fortified place
3
Large territory under one ruler
5
Payment made to show submission
7
Ancient Mesoamerican civilization
10
Sudden overthrow of a government
11
Object made by humans from the past