One of my favourite bits of #maths #history is, in 1557, Robert Recorde (🏴󠁧󠁒󠁷󠁬󠁳󠁿) gets so fed up repeating the same thing over and over again that, in order...

"to avoid the tediouse repetition of these woordes: is equalle to"

... he just gives up and invents the equals sign: =

πŸ›οΈπŸŽ“

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