Across
1
Person who buys and sells goods
6
Practice of establishing foreign colonies
7
Advanced stage of human society
8
Sudden overthrow of a government
9
Fundamental law of a nation
10
Metal that replaced bronze in tools
11
Formal agreement between nations
Down
2
Practice of farming and growing food
3
Period of one hundred years
4
Medieval land-for-service system
5
Armored warrior of medieval times
8
Ancient empire that conquered much of Europe
12
Freedom from outside control