Across
1
Union formed for mutual benefit
6
Ancient Egyptian picture writing
7
Movement of people to new areas
8
Medieval land-for-service system
9
Alloy of copper and tin used in early tools
Down
2
Armed entry into another territory
3
Military blockade of a fortified place
4
Metal that replaced bronze in tools
5
Fortified medieval residence
10
Practice of farming and growing food
11
Succession of rulers from same family
12
Person owned as property