Across
1
Military conflict or fight
4
Period of ten years
5
Fortified medieval residence
11
Sudden overthrow of a government
12
Alloy of copper and tin used in early tools
13
Legislative body in ancient Rome
14
Government elected by the people
15
Payment made to show submission
Down
2
Belonging to a very old period
3
Union formed for mutual benefit
6
Ancient Mesoamerican civilization
7
Advanced stage of human society
8
Legislative assembly of a country
9
Person with no fixed home
10
Long and distinct period of history