Across
1
Military blockade of a fortified place
4
Government ruled by a king or queen
5
Advanced stage of human society
6
Period of one hundred years
7
Metal that replaced bronze in tools
9
Legislative assembly of a country
Down
2
Fundamental law of a nation
3
Exchange of goods between peoples
8
Government by the people
10
Relating to the Middle Ages
11
Union formed for mutual benefit