Robert Chambers  (10 July 1802 – 17 March 1871) was a Scottish publisher, geologist, evolutionary thinker, author and journal editor who, like his elder brother and business partner William Chambers, was highly influential in mid-19th century scientific and political circles.
 
Chambers was an early phrenologist, and was the anonymous author of Vestiges of the Natural History of Creation, which was so controversial that his authorship was not acknowledged until after his death.

Historical content : taken from wikipedia.org

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