Across
1
Union formed for mutual benefit
6
Period of ten years
7
Handwritten historical document
8
Uprising against authority
9
Metal that replaced bronze in tools
12
Exchange of goods between peoples
Down
2
Freedom from outside control
3
Alloy of copper and tin used in early tools
4
Movement of people to new areas
5
Belonging to a very old period
10
Practice of establishing foreign colonies
11
Fortified medieval residence