Arthur Conan Doyle

from Writer's Almanac:

It's the birthday of writer Arthur Conan Doyle, born in Edinburgh, Scotland (1859). He studied medicine at the University of Edinburgh, and there he met Joseph Bell, his favorite professor. Bell taught his students how to make a successful diagnosis through observation and deduction.

After graduating, Doyle opened his own practice and wrote fiction in his spare time. In 1887, he published A Study in Scarlet, a mystery featuring a character based on his old professor: the detective Sherlock Holmes. He ended up writing 56 short stories and four novels with the famous detective, including The Hound of the Baskervilles (1902).

Doyle said, "Once you eliminate the impossible, whatever remains, however improbable, must be the truth."

And Sherlock Holmes said to his sidekick, Dr. Watson, "You have a grand gift for silence, Watson. It makes you quite invaluable as a companion."