The Strange and Righteous History of the Equals Sign...
Robert Recorde was a polymath Welshman born in 1510. He became a... ...t time to scholar who didn't read Latin. But what Recorde did that was the most lasting contribution was th... ...ting contribution was that he invented the = sign. Recorde 's symbol didn't catch on at firs...
https://www.neatorama.com/2017/07/12/The-Strange-and-Righteous-History-of-the-Equals-Sign/
