Charles Darwin · every age

What was Charles Darwin doing at 51?

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

1. Jun 1860

   The Oxford debate over his theory, held without him

   Huxley against Bishop Wilberforce. Darwin was too ill to attend.

   Source: en.wikipedia.org

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