Happy birthday, Sherlock Holmes

It is the birthday of the world's greatest fictional detective, Sherlock Holmes, according to the analysis of novelist and editor Christopher Morley, founder of the Baker Street Irregulars, a society of Holmes devotees. For decades, fans with perhaps too much time on their hands have analyzed the four novels and 56 short stories of Sir Arthur Conan Doyle to clarify such implied details as Holmes birthday and year (both 1854 and 1861 are offered), when he was at university (and whether it was Oxford or Cambridge), and the sleuth's mental health (some say he was manic depressive, others suggest Asperger's syndrome or severe family drama.) It's all great fun for fans of the most enduring crime solver of all time.