I still remember, in my school days, when my classmates and I fell into an argument about who invented “the zero” (the zero of 0, 1, 2, 3…), some of them said “god” and some others said, “Zero was always there and didn’t need any invention.” And when we finally went to our maths teacher, who said “Euclid”, we fell quiet: Our strict maths teacher, whom we respected and, I should confess, feared (he could fail you if you went against his instructions, and in that school, if you failed in maths, you risked not being promoted to the next class). What our school teachers asserted was the “truth”. It took me another 25 years to figure out that Euclid had nothing to do with it and the zero was a creation of some ancient Indian, possibly Aryabhatta or Brahmagupta.
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