Across
1
Union formed for mutual benefit
4
Government ruled by a king or queen
5
Territory controlled by another country
7
Long and distinct period of history
9
Roman arena fighter
11
Metal that replaced bronze in tools
12
Exchange of goods between peoples
Down
1
Object made by humans from the past
2
Advanced stage of human society
3
Freedom from outside control
6
Relating to the Middle Ages
8
Succession of rulers from same family
10
Government by the people
13
Military blockade of a fortified place