Across
1
Handwritten historical document
4
Alloy of copper and tin used in early tools
5
Ancient Mesoamerican civilization
9
Ancient Egyptian stone monument
10
Armed entry into another territory
12
Government ruled by a king or queen
Down
2
Fortified medieval residence
3
Advanced stage of human society
6
Succession of rulers from same family
7
Person who buys and sells goods
8
Long and distinct period of history
11
Armed conflict between nations