横向
1
Armed entry into another territory
5
Fortified medieval residence
7
Metal that replaced bronze in tools
8
Union formed for mutual benefit
9
Belonging to a very old period
纵向
2
Government ruled by a king or queen
3
Exchange of goods between peoples
4
Sudden overthrow of a government
6
Person with no fixed home
10
Handwritten historical document
11
Medieval land-for-service system