Across
1
Practice of establishing foreign colonies
6
Advanced stage of human society
8
Alloy of copper and tin used in early tools
9
Formal agreement between nations
10
Large territory under one ruler
12
Long and distinct period of history
Down
2
Ancient Egyptian picture writing
3
Practice of farming and growing food
4
Payment made to show submission
5
Roman arena fighter
7
Government by the people
11
Object made by humans from the past