It was in the year ‘95 that a combination of events, into which I need not enter, caused Mr. Sherlock Holmes and myself to spend some weeks in one of our great University towns…
— 

The Adventure of the Three Students, Sir Arthur Conan Doyle

 What combination of events happened in 1895 that would make it necessary for two fairly well known men to leave London? Wilde’s trials.

Sorry, guys.  I think it’s canon.