Across
1
Movement of people to new areas
4
Period of ten years
5
Military blockade of a fortified place
6
Practice of establishing foreign colonies
8
Object made by humans from the past
9
Union formed for mutual benefit
10
Territory controlled by another country
11
Ancient Mesoamerican civilization
12
Large territory under one ruler
Down
2
Medieval religious military campaign
3
Legislative assembly of a country
7
Armed entry into another territory
13
Relating to the Middle Ages