May 25, 1738 Mason Dixon Line
May 25, 1738 Mason Dixon Line
The Pennsylvania Charter of 1681 specifies its southern boundary to be “a circle drawne at twelve miles distance from New Castle Northward and Westward unto the beginning of the fortieth degree of Northern Latitude, and then by a streight Line Westward”. The problem is that 40° north latitude is north of Philadelphia. A later survey put New Castle, Pennsylvania 25 miles south of the 40th…
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