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Charles Mason (25 April 1728 [1] – 25 October 1786) was a British-American astronomer who made significant contributions to 18th-century science and American history, particularly through his survey with Jeremiah Dixon of the Mason–Dixon line, which came to mark the border between Maryland and Pennsylvania (1764–1768). The border between ...
Jeremiah Dixon (27 July 1733 – 22 January 1779) [1] was a British surveyor and astronomer who is best known for his work with Charles Mason, from 1763 to 1767, in determining what was later called the Mason–Dixon line.
The Mason–Dixon line is a demarcation line separating four U.S. states: Pennsylvania, Maryland, Delaware and West Virginia. It was surveyed between 1763 and 1767 by Charles Mason and Jeremiah Dixon as part of the resolution of a border dispute involving Maryland, Pennsylvania, and Delaware in the colonial United States. [1]
On November 15, 1763, Charles Mason, a renowned astronomer from Britain’s Royal Observatory, and Jeremiah Dixon, a fellow astronomer and respected land surveyor, arrived in Philadelphia.
Star Gazers' Stone located on Star Gazers' Farm near Embreeville, Pennsylvania, USA, marks the site of a temporary observatory established in January 1764 by Charles Mason and Jeremiah Dixon which they used in their survey of the Mason-Dixon line. The stone was placed by Mason and Dixon about 700 feet (213 m) north of the Harlan House, which ...
A contract between the Penns, Baltimore, and Charles Mason and Jeremiah Dixon was signed on July 20, 1763. [6] Mason and Dixon arrived in Philadelphia on November 15, 1763, where they met with the boundary Commissioners. [19] Mason and Dixon's first task was to determine the southernmost point of Philadelphia, where they
A contract between the Penns, Lord Baltimore, and Charles Mason and Jeremiah Dixon was signed on 20 July 1763. [5] Mason and Dixon arrived in Philadelphia on 15 November 1763, where they met with the boundary Commissioners. [17] Mason and Dixon's first task was to determine the southernmost point of Philadelphia, where
In 1751 a line was surveyed from the Court-designated point on the Atlantic coast (Penn's Cape Henlopen) to the Chesapeake Bay, and in turn was used by Charles Mason and Jeremiah Dixon (of Mason–Dixon line fame) in 1763 when they were engaged to survey the north-south border between Maryland and the three southern counties of Pennsylvania ...