Across
1
Military blockade of a fortified place
3
Formal agreement between nations
4
Union formed for mutual benefit
6
Practice of establishing foreign colonies
7
Succession of rulers from same family
9
Period of ten years
10
Ancient Egyptian stone monument
Down
1
Legislative body in ancient Rome
2
Freedom from outside control
3
Exchange of goods between peoples
5
Fundamental law of a nation
8
Long and distinct period of history