横向
1
Ancient empire that conquered much of Europe
5
Medieval land-for-service system
6
Object made by humans from the past
7
Movement of people to new areas
8
Succession of rulers from same family
9
Ancient Mesoamerican civilization
11
Union formed for mutual benefit
12
Person who buys and sells goods
纵向
2
Long and distinct period of history
3
Fortified medieval residence
4
Government ruled by a king or queen
10
Collection of traditional stories
13
Payment made to show submission
14
Handwritten historical document