The Strange and Righteous History of the Equals Sign
Robert Recorde was a polymath Welshman born in 151... ...to "ae" or "oe." But aiding the popularity of the equals sign was Recorde's introduction, to English-speak...
https://www.neatorama.com/2017/07/12/The-Strange-and-Righteous-History-of-the-Equals-Sign/
