On 14 May 1856, Charles Darwin recorded in his journal that, on the advice of his friend Charles Lyell, after almost 20 years exploring the subject, he had finally begun writing a ‘sketch’ of his ideas on species.
On 20th February, 1835, Charles Darwin was lying down in a wood having a rest in Valvidia, Southern Chile, when he experienced a major earthquake.
Humorously describing mankind's ancestor.
In 1841, Darwin's ill-health evidently left him with low expectations of his future ability to contribute to science.
Charles Darwin finally went public with his theory of evolution by means of Natural Selection on 1st July 1858.