Across
1
Practice of establishing foreign colonies
7
Fortified medieval residence
8
Government by the people
9
Exchange of goods between peoples
12
Person owned as property
13
Armed entry into another territory
Down
2
Sudden overthrow of a government
3
Metal that replaced bronze in tools
4
Medieval land-for-service system
5
Ancient empire that conquered much of Europe
6
Relating to the Middle Ages
7
Advanced stage of human society
10
Handwritten historical document
11
Period of one hundred years