At My AgePeople

Isaac Newton · every age

What was Isaac Newton doing at 25?

Invented calculus and gravity theory in a plague year at 23

  1. c. 1668

    Built the first working reflecting telescope

    He ground the mirror himself. It brought him to the Royal Society's attention.

    Source: en.wikipedia.org
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Others at 25

Portrait: Portrait: Godfrey Kneller (1689), public domain, via Wikimedia Commons · source