横向
1
Government ruled by a king or queen
4
Military blockade of a fortified place
6
Metal that replaced bronze in tools
7
Government elected by the people
8
Payment made to show submission
9
Government by the people
10
Period of ten years
纵向
2
Person with no fixed home
3
Relating to the Middle Ages
5
Period of one hundred years
11
Belonging to a very old period
12
Legislative body in ancient Rome
13
Succession of rulers from same family
14
Medieval land-for-service system
15
Medieval religious military campaign