Across
1
Military conflict or fight
5
Alloy of copper and tin used in early tools
6
Metal that replaced bronze in tools
7
Person owned as property
9
Period of one hundred years
10
Movement of people to new areas
Down
2
Ancient empire that conquered much of Europe
3
Fortified medieval residence
4
Payment made to show submission
8
Territory controlled by another country
11
Succession of rulers from same family
12
Medieval land-for-service system
13
Long and distinct period of history