Across
1
Metal that replaced bronze in tools
4
Ancient Egyptian ruler
5
Movement of people to new areas
6
Fundamental law of a nation
7
Large territory under one ruler
8
Sudden overthrow of a government
9
Armed conflict between nations
10
Armored warrior of medieval times
15
Military conflict or fight
Down
2
Advanced stage of human society
3
Legislative assembly of a country
11
Roman arena fighter
12
Medieval land-for-service system
13
Person with no fixed home
14
Practice of establishing foreign colonies