横向
1
Period of ten years
4
Armed entry into another territory
5
Movement of people to new areas
6
Belonging to a very old period
7
Government ruled by a king or queen
纵向
2
Formal agreement between nations
3
Roman arena fighter
8
Fundamental law of a nation
9
Union formed for mutual benefit
10
Relating to the Middle Ages
11
Payment made to show submission
12
Long and distinct period of history
13
Metal that replaced bronze in tools
14
Exchange of goods between peoples