Across
1
Military blockade of a fortified place
4
Ancient empire that conquered much of Europe
5
Metal that replaced bronze in tools
6
Practice of farming and growing food
8
Person who travels to discover new lands
Down
2
Uprising against authority
3
Person who buys and sells goods
5
Freedom from outside control
7
Armed conflict between nations
9
Union formed for mutual benefit
10
Practice of establishing foreign colonies