ON THIS DAY: 7? June, 1558
ON THIS DAY: 7? June, 1558 – Robert Recorde, the man who invented the mathematical equals sign (=), died in a debtors’ prison in London. Recorde was born in Tenby, He earned his degree at Oxford in 1531 and went on to teach mathematics there as well as at Cambridge. At some point, he began … Read more