TIL That the equals sign ( = ) was invented in 1557 after Welsh mathematician Robert Recorde got tired of having to write "is equal to" over and over again.
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Submitted January 05, 2018 at 03:23PM by anangrysoviet http://ift.tt/2CMpBrT
Submitted January 05, 2018 at 03:23PM by anangrysoviet http://ift.tt/2CMpBrT
TIL That the equals sign ( = ) was invented in 1557 after Welsh mathematician Robert Recorde got tired of having to write "is equal to" over and over again.
![TIL That the equals sign ( = ) was invented in 1557 after Welsh mathematician Robert Recorde got tired of having to write "is equal to" over and over again.]()
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