Across
1
Exchange of goods between peoples
5
Handwritten historical document
9
Armed entry into another territory
10
Person who travels to discover new lands
12
Metal that replaced bronze in tools
Down
2
Movement of people to new areas
3
Payment made to show submission
4
Person owned as property
6
Military blockade of a fortified place
7
Freedom from outside control
8
Government by the people
11
Armed conflict between nations
