Across
1
Union formed for mutual benefit
5
Formal agreement between nations
6
Long and distinct period of history
8
Military conflict or fight
9
Fortified medieval residence
11
Medieval land-for-service system
12
Government by the people
Down
2
Legislative body in ancient Rome
3
Military blockade of a fortified place
4
Practice of farming and growing food
7
Ancient Mesoamerican civilization
10
Succession of rulers from same family
13
Object made by humans from the past