This volume offers a behind-the-scenes look at one of science's most revolutionary concepts. Charles Darwin relates in his own words the experiences that sparked his development of evolutionary theory as well as the events surrounding its controversial publication. Commentary by Darwin's son provides narrative links that unite an autobiographical essay, notebook excerpts, and letters between the scientist and other 19th-century luminaries. AUTHOR: Charles Darwin was born in England in 1809 and attended the University of Edinburgh to study medicine. When he decided against that vocation, he enrolled at Cambridge where he earned a degree in theology. During an expedition to Africa and South America, Darwin continued his studies in natural science and began writing about his theories of natural selection. His work led to the publication of On the Origin of Species, a book that changed the world.