en.wikipedia.org/wiki/Equals_sign

The equals sign or equality sign (=) is a mathematical symbol used to indicate
equality. It was invented in 1557 by Robert Recorde. In an equation, the equals ...

ualr.edu/lasmoller/equals.html

The symbol '=' was first used only in 1557! It was the invention of a Welshman
named Robert Recorde, the man who first introduced algebra to England.
Recorde ...

www.todayifoundout.com/index.php/2011/02/where-the-equal-sign-came-from/

Feb 17, 2011 ... The equal sign (“=”) was invented in 1557 by Welsh mathematician Robert
Recorde, who was fed up with writing “is equal to” in his equations.

www.ask.com/youtube?q=Who Invented The Equal Sign&v=JCpPgIbKYUM

Sep 27, 2013 ... How did the equal sign originate? We try to answer this question in 2 minutes or
less, so learn more about it from this short history of the ...

www.bbc.com/news/uk-wales-34259108

Sep 16, 2015 ... As well as laying claim to being the inventor of the mathematical equals sign,
Recorde was also the man who introduced algebra to Britain.

blog.plover.com/math/recorde.html

Apr 7, 2006 ... Robert Recorde invents the equals sign · I mentioned recently that the integral
sign $$\int$$ is actually a letter "S", chosen by Leibnitz because ...

jeff560.tripod.com/relation.html

Nov 11, 2011 ... In printed books before the modern equal sign, equality was usually ... These
symbols were "employed, if not invented by, Euler" (Ball, page ...

mentalfloss.com/article/76342/retrobituaries-robert-recorde-inventor-equals-sign

Mar 4, 2016 ... In the 16th century, British mathematics was somewhat lacking compared to other
advanced nations in Europe. However, a doctor and math ...

www.quora.com/How-were-humans-doing-math-before-the-equal-sign-was-invented-in-1557-by-Robert-Recorde

Since math is a documented process going back to before 2000 bc, the equals
sign is only a modern accepted "equivalent" to the signs used ...

www.walesonline.co.uk/lifestyle/nostalgia/welsh-history-month-kind-recordepolymath-10357697

Oct 30, 2015 ... While his invention secured Recorde's place in history there was much ... It = the
equals sign, and its creator was the Tenby-born polymath ...