Region
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Connecticut
2
Cornwall
2
Derbyshire (England)
2
Devon
2
Devon (England)
2
Dorset
2
Dorset (England)
2
Germany
2
Gloucestershire (England)
2
Grande-Bretagne
2
Greenland
2
Guatemala
2
Gulf States
2
Hampshire
2
Hampshire (England)
2
Hawthorn Farmstead (Del.)
2
Helvetia
2
Helvetia (Pa.)
2
Helvetia (Penns.)
2
Henryville
2
Hertfordshire
2
Hertfordshire (England)
2
Independence National Historical Park (Philadelphia, Pa.)
2
Jamestown
2
Kansas
2
Kent
2
Lewden Green Site (Christiana, Del.)
2
London
2
Louisiane
2
Maryland
2
Mayas
2
Mississippi
2
Mississippi River
2
Missouri
2
Monroe County
2
Monroe County (Pa.)
2
Nebraska
2
Nisyros
2
Nisyros (Greece)
2
Nordamerika
2
Northamptonshire
2
Northwest Coast of North America
2
Nottinghamshire (England)
2
Ohio River Valley
2
Philadelphie
2
Rhode Island
2
Scarborough Road (Dover, Del.)
2
Shropshire
2
Shropshire (England)
2
South Carolina
2
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