Across
1
Exchange of goods between peoples
4
Military conflict or fight
6
Person who travels to discover new lands
9
Legislative body in ancient Rome
10
Metal that replaced bronze in tools
12
Union formed for mutual benefit
Down
2
Military blockade of a fortified place
3
Medieval religious military campaign
5
Armored warrior of medieval times
7
Large territory under one ruler
8
Handwritten historical document
11
Armed entry into another territory