Across
1
Advanced stage of human society
7
Military blockade of a fortified place
8
Relating to the Middle Ages
11
Union formed for mutual benefit
12
Government ruled by a king or queen
Down
2
Freedom from outside control
3
Sudden overthrow of a government
4
Alloy of copper and tin used in early tools
5
Large territory under one ruler
6
Territory controlled by another country
9
Period of one hundred years
10
Military conflict or fight