Across
1
Armored warrior of medieval times
3
Medieval land-for-service system
6
Person who travels to discover new lands
8
Belonging to a very old period
9
Legislative body in ancient Rome
10
Period of one hundred years
12
Movement of people to new areas
Down
2
Formal agreement between nations
4
Advanced stage of human society
5
Practice of farming and growing food
7
Government by the people
11
Metal that replaced bronze in tools