横向
1
Long and distinct period of history
4
Period of ten years
5
Relating to the Middle Ages
6
Person who travels to discover new lands
7
Freedom from outside control
8
Ancient Mesoamerican civilization
9
Government by the people
10
Advanced stage of human society
纵向
2
Union formed for mutual benefit
3
Belonging to a very old period
11
Ancient Egyptian picture writing
12
Government ruled by a king or queen
13
Person who buys and sells goods
14
Alloy of copper and tin used in early tools