Robert Recorde
Welsh mathematician and inventor of the symbol '=' · United Kingdom · On the map · Academics · Lived 1510 to 1558 · aged 48
Robert Recorde was a Welsh physician and mathematician. He invented the equals sign (=) and also introduced the pre-existing plus (+) and minus (−) signs to English speakers in 1557.
Robert Recorde is read about 60 times a day, in 38 languages.
A typical day, 30 days to 6 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 104 days, one point a day.
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About this person
Country
United Kingdom
Category
Academics
Type
Academic
Status
Deceased
Dates
Lived 1510 to 1558 · aged 48
