Charles Darwin · every age

What was Charles Darwin doing at 67?

Boarded the Beagle at 22, published his big idea at 50

1. c. 1876

   Wrote a private autobiography for his children

   Published after his death, with the passages on religion cut by his family.

   Source: en.wikipedia.org

Portrait: Photo: Maull & Fox (c. 1854), public domain, via Wikimedia Commons · source