Across
1
Person who buys and sells goods
5
Long and distinct period of history
7
Legislative body in ancient Rome
8
Metal that replaced bronze in tools
9
Armed entry into another territory
11
Large territory under one ruler
12
Exchange of goods between peoples
Down
2
Payment made to show submission
3
Military conflict or fight
4
Medieval religious military campaign
6
Uprising against authority
10
Advanced stage of human society