masc. proper name, literally "fair-haired," from Old English scir "bright" + locc "lock of hair." Slang for "private detective, perceptive person" (the latter often ironic) is attested from 1903, from A.C. Doyle's fictional character Sherlock Holmes (full name in this sense used from 1896; Holmes debuted in 1887 and was popular by 1892).[Sherlock etymology, Sherlock origin, 英语词源]
"An American cargo ship that was found afloat in the North Atlantic in December 1872 in perfect condition but abandoned. The fate of the crew and the reason for the abandonment of the ship remain a mystery", The ship was called the Mary Celeste, but the form Marie Celeste was popularized by an account written by Sir Arthur Conan Doyle in 1884, and is now commoner in allusive use.