December 27: Today is the anniversary of Charles Darwin shipment aboard the HMS Beagle on whose journey began formulating his theory of evolution in 1831.

Route of the Darwin´s journey on H.M.S. Beagle

On December 27th, 1831, H.M.S. Beagle sailed out of Plymouth harbor in Great Britain. Charles Darwin became seasick almost immediately and started to have second thoughts about the voyage.

Darwin spent most of that time exploring the mainland, a total of three years and three months. The remaining 18 months were spent at sea.

The book, which has also been known as Research Journal, brings its exciting travel memoir as well as annotations scientific nature relating to biology, geology, and anthropology that prove the extraordinary powers of observation of the author.

Although the path of the HMS Beagle happened sometimes in the same places, Darwin scientific references ordered by places, rather than chronologically.

His journal represents the first entries that suggest ideas that later would lead him to write his theory of evolution by natural selection.