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Isaac Newton · every age

What was Isaac Newton doing at 29?

Invented calculus and gravity theory in a plague year at 23

  1. Jan 1672

    Elected a Fellow of the Royal Society

    His paper on light and colour that year drew a bitter dispute with Robert Hooke.

    Source: en.wikipedia.org
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Portrait: Portrait: Godfrey Kneller (1689), public domain, via Wikimedia Commons · source