he visited somewhere
Charles Darwin did visit New Zealand while aboard the HMS Beagle.
Yes, Charles Darwin did visit Ilkley, and the accounts of it suggest he was there during the publication of the Origin of Species. He visited in 1859.
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Charles Darwin visited Floreana, Isabela, San Cristóbal, and Santiago islands
On November 24th, 1859 Charles Darwin published his book On the Origin of Species, so this is really when his theory went public, but his ideas were conceived (started) in the late 1830s.
To begin to formulate his theory of evolution
I believe that you think to Galapagos Islands.
Charles Darwin's name was Charles Robert Darwin.
No, Charles Darwin is not single.
Where was Charles Darwin born
Who were Charles's Darwin's parents and what did they do
Charles Darwin was a naturalist.