Region
Connecticut
1
Czechoslovakia
1
Europe
1
États du Moyen-Atlantique (États-Unis)
1
États-Unis
1
Fayette County (Pa.)
1
Greene County (Pa.)
1
Guyana
1
Maryland
3
Mason-Dixon Line
1
Massachusetts
1
Middle Atlantic States
1
New York (State)
1
Ohio River Valley
1
Ohio, Vallée de l'
1
Orava
1
Orava (Slovakia and Poland)
1
Pennsylvania
3
Pennsylvania-Virginia boundary dispute
1
Pennsylvanie
1
Philadelphia (Pa.)
1
Poland
1
Puerto Rico--History
1
Rhode Island
1
Spiš
1
Spiš (Poland and Slovakia)
1
Spiš (Pologne et Slovaquie)
1
United States
2
Venezuela
1
Washington County (Pa.)
1
Westmoreland County (Pa.)
1
Zips
1