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Rhode Island County Formation years
1643 1644 1652 1658 1662 1663 1664 1665 1686 1689 1703 1729 1747 1750 1781
1862 1963                          
Rhode Island Map Abbreviations
unorg. = unorganized
g. = gained
w. = with
fr. = from
atmt. = attachment
exch = exchanged
nca.= non county area
ch. = changed
Pr  - Providence
Wa - Washington
Br - Bristol
Knt - Kent
Ne - Newport