Across
1
Medieval land-for-service system
3
Metal that replaced bronze in tools
5
Person who travels to discover new lands
6
Sudden overthrow of a government
10
Movement of people to new areas
11
Fundamental law of a nation
Down
2
Union formed for mutual benefit
4
Long and distinct period of history
7
Armored warrior of medieval times
8
Alloy of copper and tin used in early tools
9
Practice of establishing foreign colonies