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5 avr. 1765 - After completing the portion of the Mason– Dixon line marking the semi-circular boundary between Pennsylvania and Delaware, English surveyors Charles Mason and Jeremiah Dixon begin the two and a half year process of plotting out the 230-mile boundary between Pennsylvania and Maryland along the latitude of 39°43′20″ N

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ByClaire the Bread Fascist
15 sept. 2023
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Date:

5 avr. 1765
Maintenaint
~ Il y a 260 ans
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