Across
1
Medieval religious military campaign
4
Object made by humans from the past
6
Ancient Mesoamerican civilization
7
Ancient Egyptian stone monument
8
Person with no fixed home
10
Advanced stage of human society
11
Armed entry into another territory
13
Period of one hundred years
14
Formal agreement between nations
Down
2
Government by the people
3
Person who buys and sells goods
5
Union formed for mutual benefit
9
Alloy of copper and tin used in early tools
12
Person owned as property
15
Armored warrior of medieval times