Across
1
Metal that replaced bronze in tools
3
Payment made to show submission
6
Ancient Egyptian ruler
8
Formal agreement between nations
11
Advanced stage of human society
12
Sudden overthrow of a government
13
Armored warrior of medieval times
Down
2
Uprising against authority
4
Succession of rulers from same family
5
Alloy of copper and tin used in early tools
7
Medieval land-for-service system
9
Period of one hundred years
10
Military conflict or fight