Isaac Newton · every age
What was Isaac Newton doing at 74?
Invented calculus and gravity theory in a plague year at 23
- Sep 21, 1717
Reported to the Treasury on gold and silver coin values
A proclamation in December capped the guinea at 21 shillings.
Source: en.wikipedia.org
Others at 74
Portrait: Portrait: Godfrey Kneller (1689), public domain, via Wikimedia Commons · source
