Across
1
Practice of establishing foreign colonies
6
Formal agreement between nations
7
Person owned as property
10
Military blockade of a fortified place
11
Object made by humans from the past
12
Uprising against authority
Down
2
Roman arena fighter
3
Government ruled by a king or queen
4
Long and distinct period of history
5
Fortified medieval residence
8
Armed entry into another territory
9
Person who buys and sells goods