Across
1
Relating to the Middle Ages
4
Armed entry into another territory
6
Fundamental law of a nation
7
Metal that replaced bronze in tools
8
Military conflict or fight
10
Person who travels to discover new lands
12
Armored warrior of medieval times
Down
2
Advanced stage of human society
3
Roman arena fighter
5
Ancient empire that conquered much of Europe
9
Union formed for mutual benefit
11
Payment made to show submission