Across
1
Metal that replaced bronze in tools
4
Handwritten historical document
5
Alloy of copper and tin used in early tools
6
Movement of people to new areas
8
Legislative body in ancient Rome
9
Period of ten years
12
Armed entry into another territory
Down
2
Advanced stage of human society
3
Male monarch ruler
7
Medieval religious military campaign
10
Territory controlled by another country
11
Union formed for mutual benefit