Across
1
Armed entry into another territory
4
Metal that replaced bronze in tools
6
Roman arena fighter
7
Deadly epidemic disease
8
Advanced stage of human society
9
Person with no fixed home
10
Legislative body in ancient Rome
11
Government elected by the people
12
Ancient empire that conquered much of Europe
13
Payment made to show submission
Down
2
Large territory under one ruler
3
Practice of establishing foreign colonies
4
Freedom from outside control
5
Military blockade of a fortified place