Sir+Arthur+Conan+Doyle

====I am interested in learning more about Sir Arthur Conan Doyle and, specifically, the origins of his famous Sherlock Holmes character, stories, and novels. Related to this topic, I am also interested in when the detective story began and whether it was a product of Doyle's or some other writer's imagination or if the detective story came about as the result of the profession and an attempt to reflect actual detectives working to solve cases at a specific point in history.====