横向
1
Succession of rulers from same family
5
Relating to the Middle Ages
6
Person who travels to discover new lands
7
Person who buys and sells goods
8
Armed conflict between nations
9
Long and distinct period of history
纵向
2
Advanced stage of human society
3
Government ruled by a king or queen
4
Legislative assembly of a country
10
Sudden overthrow of a government
11
Alloy of copper and tin used in early tools