Across
1
Exchange of goods between peoples
2
Medieval religious military campaign
4
Union formed for mutual benefit
5
Sudden overthrow of a government
6
Object made by humans from the past
7
Fundamental law of a nation
8
Ancient Egyptian ruler
9
Fortified medieval residence
11
Long and distinct period of history
Down
2
Advanced stage of human society
3
Freedom from outside control
10
Government ruled by a king or queen