Region
1981-
1
20th century
1
Afrique du Sud
1
Amérique du Nord
1
Balitimore County (Md.)
1
Boston
1
California
2
Canada
3
Clarke County
1
Clarke County (Miss.)
1
Detroit
1
Detroit (Mich.)
1
Escambia County
1
Escambia County (Fla.)
1
Etats-Unis
1
Europe
1
États-Unis
12
États-Unis (Sud)
1
Florida
1
Great Britain
3
La Nouvelle-Orléans
1
Louisiana
1
Louisiane
1
Maryland
1
Massachusetts
1
Michigan
1
Minneapolis
1
Minnesota
1
Mississippi
1
Missouri
1
Nebraska
1
New Orleans
1
New Orleans (La.)
1
Nile River Valley
1
North America
1
Northwest Coast of North America
1
Oceania
1
Pennsylvania
6
Philadelphia
4
Philadelphia (Pa.)
5
Pittsburgh
1
Pittsburgh (Pa.)
1
Rhode Island
1
Santa Paula
1
Santa Paula (Calif.)
1
Schwarze
1
Shubuta (Miss.)
1
Social conditions
1
South Africa
3
Southern States
4
more ...