Across
1
Exchange of goods between peoples
4
Government elected by the people
7
Medieval religious military campaign
8
Alloy of copper and tin used in early tools
9
Military blockade of a fortified place
10
Succession of rulers from same family
11
Fundamental law of a nation
Down
2
Long and distinct period of history
3
Period of one hundred years
5
Freedom from outside control
6
Legislative assembly of a country