Across
1
Government ruled by a king or queen
5
Ancient empire that conquered much of Europe
6
Alloy of copper and tin used in early tools
7
Person owned as property
9
Sudden overthrow of a government
10
Union formed for mutual benefit
11
Ancient Mesoamerican civilization
Down
2
Freedom from outside control
3
Legislative assembly of a country
4
Object made by humans from the past
8
Formal agreement between nations
12
Ancient Egyptian picture writing