Across
1
Exchange of goods between peoples
4
Roman arena fighter
7
Metal that replaced bronze in tools
10
Ancient empire that conquered much of Europe
11
Military conflict or fight
12
Government by the people
13
Fortified medieval residence
14
Payment made to show submission
Down
2
Belonging to a very old period
3
Legislative body in ancient Rome
5
Period of ten years
6
Ancient Egyptian stone monument
8
Formal agreement between nations
9
Person with no fixed home