Across
1
Practice of establishing foreign colonies
5
Deadly epidemic disease
10
Roman arena fighter
11
Territory controlled by another country
13
Military blockade of a fortified place
14
Exchange of goods between peoples
Down
2
Long and distinct period of history
3
Relating to the Middle Ages
4
Union formed for mutual benefit
6
Military conflict or fight
7
Metal that replaced bronze in tools
8
Advanced stage of human society
9
Movement of people to new areas
12
Armored warrior of medieval times