横向
1
Legislative assembly of a country
7
Period of one hundred years
8
Person who travels to discover new lands
9
Object made by humans from the past
11
Practice of establishing foreign colonies
13
Metal that replaced bronze in tools
纵向
2
Relating to the Middle Ages
3
Advanced stage of human society
4
Government ruled by a king or queen
5
Alloy of copper and tin used in early tools
6
Belonging to a very old period
10
Ancient Egyptian stone monument
12
Person owned as property
14
Long and distinct period of history