Across
1
Armed entry into another territory
4
Alloy of copper and tin used in early tools
5
Medieval land-for-service system
7
Legislative body in ancient Rome
10
Armored warrior of medieval times
12
Government ruled by a king or queen
15
Advanced stage of human society
Down
2
Person who travels to discover new lands
3
Large territory under one ruler
6
Movement of people to new areas
8
Metal that replaced bronze in tools
9
Legislative assembly of a country
11
Fundamental law of a nation
13
Handwritten historical document
14
Person who buys and sells goods