Across
1
Ancient empire that conquered much of Europe
4
Sudden overthrow of a government
8
Ancient Mesoamerican civilization
10
Fundamental law of a nation
11
Advanced stage of human society
12
Period of ten years
13
Succession of rulers from same family
Down
2
Government ruled by a king or queen
3
Exchange of goods between peoples
5
Metal that replaced bronze in tools
6
Person owned as property
7
Collection of traditional stories
9
Armored warrior of medieval times