横向
1
Formal agreement between nations
5
Metal that replaced bronze in tools
6
Government elected by the people
7
Large territory under one ruler
8
Movement of people to new areas
10
Roman arena fighter
12
Person who buys and sells goods
15
Collection of traditional stories
纵向
2
Medieval land-for-service system
3
Territory controlled by another country
4
Uprising against authority
9
Period of one hundred years
11
Union formed for mutual benefit
13
Person who travels to discover new lands
14
Government ruled by a king or queen