横向
1
Male monarch ruler
3
Succession of rulers from same family
4
Large territory under one ruler
6
Territory controlled by another country
8
Person who travels to discover new lands
9
Alloy of copper and tin used in early tools
10
Person with no fixed home
纵向
2
Relating to the Middle Ages
3
Period of ten years
5
Ancient empire that conquered much of Europe
7
Exchange of goods between peoples
11
Long and distinct period of history