横向
1
Person who travels to discover new lands
4
Succession of rulers from same family
5
Freedom from outside control
8
Metal that replaced bronze in tools
10
Belonging to a very old period
纵向
2
Government ruled by a king or queen
3
Alloy of copper and tin used in early tools
6
Armored warrior of medieval times
7
Legislative assembly of a country
9
Large territory under one ruler