横向
1
Government by the people
7
Exchange of goods between peoples
9
Armed conflict between nations
10
Person owned as property
11
Ancient Mesoamerican civilization
12
Military blockade of a fortified place
13
Practice of farming and growing food
纵向
2
Practice of establishing foreign colonies
3
Government ruled by a king or queen
4
Object made by humans from the past
5
Ancient Egyptian stone monument
6
Government elected by the people
8
Person who travels to discover new lands
14
Legislative body in ancient Rome