It is tempting, very tempting to say a 7% solution of cocaine. But, before Holmes was a detective he went to school just as any young man who's parents had enough money did. In fact, one of his first cases if not his first case involved the father of a schoolmate of his. This may have been what inspired him to become the only Consulting Detective in the world.
Sherlock Holmes Consulting Detective was created in 1981.
Sherlock Holmes is a fictional character. Sherlock identified himself as a London-based "consulting detective".
.... Sherlock Holmes
Sherlock Holmes.
The great fictional detective, Sherlock Holmes, described himself as the world's first Consulting Detective. "Well, I have a trade of my own. I suppose I am the only one in the world. I'm a consulting detective, if you can understand what that is." -- Sherlock Holmes, 'A Study In Scarlet'
The name of the detective created by Sir Arthur Conan Doyle is Sherlock Holmes.
Sort of... there was a real detective, that Sherlock was based on, but no.
Sherlock Holmes
Sherlock Holmes
Fictitious detective.
Sherlock Holmes.
Sherlock Holmes