Across
1
Period of ten years
2
Metal that replaced bronze in tools
5
Armed conflict between nations
6
Movement of people to new areas
7
Advanced stage of human society
8
Ancient Egyptian stone monument
9
Ancient Mesoamerican civilization
11
Formal agreement between nations
12
Payment made to show submission
Down
1
Succession of rulers from same family
2
Armed entry into another territory
3
Person who travels to discover new lands
4
Large territory under one ruler
7
Fundamental law of a nation
10
Armored warrior of medieval times