Across
1
Military blockade of a fortified place
3
Metal that replaced bronze in tools
5
Union formed for mutual benefit
6
Large territory under one ruler
7
Medieval religious military campaign
10
Uprising against authority
11
Freedom from outside control
Down
2
Person who travels to discover new lands
4
Alloy of copper and tin used in early tools
8
Collection of traditional stories
9
Roman arena fighter
12
Payment made to show submission