Across
1
Object made by humans from the past
3
Alloy of copper and tin used in early tools
6
Medieval land-for-service system
9
Medieval religious military campaign
10
Ancient empire that conquered much of Europe
Down
2
Person owned as property
4
Practice of farming and growing food
5
Deadly epidemic disease
7
Metal that replaced bronze in tools
8
Period of one hundred years
11
Armored warrior of medieval times
12
Exchange of goods between peoples
13
Armed conflict between nations