Across
1
Advanced stage of human society
6
Formal agreement between nations
7
Exchange of goods between peoples
8
Person with no fixed home
9
Payment made to show submission
11
Government elected by the people
14
Person owned as property
Down
2
Belonging to a very old period
3
Medieval land-for-service system
4
Roman arena fighter
5
Ancient Egyptian ruler
10
Period of ten years
12
Territory controlled by another country
13
Union formed for mutual benefit