Across
1
Payment made to show submission
6
Object made by humans from the past
7
Formal agreement between nations
8
Period of ten years
9
Medieval religious military campaign
10
Advanced stage of human society
11
Union formed for mutual benefit
13
Medieval land-for-service system
Down
2
Legislative assembly of a country
3
Alloy of copper and tin used in early tools
4
Government by the people
5
Government elected by the people
12
Military blockade of a fortified place