Across
1
Person who buys and sells goods
5
Practice of establishing foreign colonies
6
Object made by humans from the past
7
Large territory under one ruler
9
Person who travels to discover new lands
10
Uprising against authority
11
Belonging to a very old period
14
Ancient Egyptian picture writing
Down
2
Government elected by the people
3
Government ruled by a king or queen
4
Metal that replaced bronze in tools
8
Period of ten years
12
Sudden overthrow of a government
13
Armed conflict between nations
15
Military blockade of a fortified place