Across
1
Object made by humans from the past
6
Ancient empire that conquered much of Europe
7
Practice of establishing foreign colonies
8
Sudden overthrow of a government
10
Succession of rulers from same family
Down
2
Deadly epidemic disease
3
Military blockade of a fortified place
4
Legislative body in ancient Rome
5
Advanced stage of human society
9
Exchange of goods between peoples
11
Person who buys and sells goods
12
Formal agreement between nations