Can you find the 23rd root of a 201-digit number? The late Shakuntala Devi, India's arithmetic prodigy, calculated the answer in just 50 seconds (beating a computer).
Related: The First Computers Were People
What day did November 20th fall on in the year 1851? Shakuntala Devi knew the answer immediately.
Henrietta Swan Leavitt was a Harvard "computer" who changed astronomy forever.
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