1728 – Charles Mason born

Born some time in April of 1728, Charles Mason is probably best known as one of the two drawers of the Mason-Dixon Line separating Pennsylvania and Maryland. In his day, though, he was better known for his work for the Royal Society, including observing the Transit of Venus in 1761 (the first time he worked with Jeremiah Dixon), and most particularly, his long and ultimately successful struggle to perfect the Lunar Tables (which were used to determine the longitude of ships at sea).

Referenced in:

Sailing To Philadelphia — Mark Knopfler