Across
1
Armored warrior of medieval times
3
Union formed for mutual benefit
7
Advanced stage of human society
10
Long and distinct period of history
12
Freedom from outside control
13
Metal that replaced bronze in tools
14
Person who buys and sells goods
Down
2
Payment made to show submission
4
Movement of people to new areas
5
Practice of farming and growing food
6
Military blockade of a fortified place
8
Sudden overthrow of a government
9
Fundamental law of a nation
11
Collection of traditional stories
15
Male monarch ruler