Isaac Newton · every age
What was Isaac Newton doing at 50?
Invented calculus and gravity theory in a plague year at 23
- c. 1693
Breakdown at 50: wild accusing letters to Pepys and Locke
His close friendship with Fatio de Duillier ended abruptly the same year.
Source: en.wikipedia.org
Others at 50
Portrait: Portrait: Godfrey Kneller (1689), public domain, via Wikimedia Commons · source
