Region
United States
143
China
24
Great Britain
10
England
9
Developing countries
5
Wales
4
Japan
3
Asia
2
Colorado
2
Developed countries
2
Europe
2
India
2
Kenya
2
Southern States
2
Texas
2
Aberdeen
1
Africa, Sub-Saharan
1
Alabama
1
Alaska
1
Antiquities, Prehistoric
1
Appalachian Region
1
Appalachian region
1
Arizona
1
Bradford (West Yorkshire)
1
California
1
European Economic Community countries
1
Finland
1
France
1
Gambia
1
Ghana
1
Government policy
1
Greece
1
Hebei Sheng
1
Hungary
1
Illinois
1
Islamic countries
1
Italy
1
Kentucky
1
La Brea Pits (Calif.)
1
Lebanon
1
London (England)
1
Los Angeles
1
Los Angeles (Calif.)
1
Mexico
1
Mississippi River
1
Moon
1
New Jersey
1
Oak Park
1
Pakistan
1
Paliambela Kolindros Site (Greece)
1
more ...