med_cat: (cat in dress)
Nechama Chaya ([personal profile] med_cat) wrote2015-12-13 09:12 am
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Fun facts to know and tell



The equal sign, "=", was invented in 1557 by Welsh mathematician Robert Recorde, who was fed up with writing "is equal to" in his equations. He chose the two lines because "no two things can be more equal."

(from TodayIFoundOut.com)

[identity profile] benicek.livejournal.com 2015-12-13 09:22 pm (UTC)(link)
Well, I never knew that.