#OTD in 1889.
Arthur Conan Doyle and Oscar Wilde are entertained together at dinner at the Langham Hotel, London, by the American Joseph Marshall Stoddart of Lippincott's Monthly Magazine, who commissions from them respectively the stories The Sign of the Four and The Picture of Dorian Gray, which appear next year in the magazine.
The Sign of the Four at PG:
https://gutenberg.org/ebooks/2097
The Picture of Dorian Gray at PG:
https://gutenberg.org/ebooks/4078
https://gutenberg.org/ebooks/174