CHARLES ROBERT DARWIN was born in 1809 in Shrewsbury, England, to a wealthy intellectual family, his grandfather being the famous physician Erasmus Darwin. At Cambridge University he formed a friendship with J. S. Henslow, a professor of botany, and that association, along with his enthusiasm for collecting beetles, led to a burning zeal, as he wrote in hisAutobiography, for the natural sciences. When Henslow obtained for him the post of naturalist on H.M.S.Beagle, the course of his life was fixed. The five-year-long voyage to the Southern Hemisphere between 1831 and 1836 would lay the foundation for his ideas about evolution and natural selection. Upon his return Darwin lived in London before retiring to his residence at Down, a secluded village in Kent. For the next forty years he conducted his research there and wrote the works that would change human understanding forever. Knowing of the resistance from the orthodox scientific and religious communities, Darwin publishedThe Origin of Speciesin 1859 only when another naturalist, Alfred Russel Wallace, independently reached the same conclusions. His other works includeThe Descent of Man, and Selection in Relation to Sex(1871) andRecollections of My Mind and Character, also titledAutobiography(1887). Charles Darwin sDiary of the Voyage of the H.M.S. Beaglewas published posthumously in 1933. Darwin died in 1882; he is buried in Westminster Abbey.