Charles Mason
English astronomer and surveyor · Scientists · Lived 1728 to 1786 · aged 58
Charles Mason was an English surveyor and astronomer who is best known for surveying the Mason-Dixon line with Jeremiah Dixon from 1763 to 1767. The line came to mark the borders between Maryland, Pennsylvania and Delaware.
Charles Mason is read about 110 times a day, in 13 languages.
A typical day, 30 days to 12 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 111 days, one point a day.
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About this person
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1728 to 1786 · aged 58
