横向
1
Government ruled by a king or queen
6
Medieval land-for-service system
8
Handwritten historical document
9
Alloy of copper and tin used in early tools
10
Metal that replaced bronze in tools
11
Uprising against authority
12
Long and distinct period of history
14
Payment made to show submission
纵向
2
Practice of farming and growing food
3
Object made by humans from the past
4
Practice of establishing foreign colonies
5
Armed entry into another territory
7
Period of one hundred years
13
Legislative assembly of a country
15
Union formed for mutual benefit