Alfred Russel Wallace

18-Jun-1858: Wallace’s bombshell

On 18th June 1858, Charles Darwin received the biggest bombshell of his scientific career: it looked as if he was about to be scooped!

24-Aug-1831: Henslow’s letter

On 24th August 1831, Charles Darwin’s great friend and mentor John Stevens Henslow sat down at his desk, took up his pen, and wrote what turned out to be one of the most important letters in the history of science.