"On a memorable morning of early December London opened its eyes on a frigid gray mist..."
#OTD in 1891.
Israel Zangwill's The Big Bow Mystery, the first classic full-length locked room mystery, begins serialization in The Star (London), before being published as a novel the following year.
It has been almost continuously in print since 1891 and has been used as the basis for three movies.
https://en.wikipedia.org/wiki/The_Big_Bow_Mystery
The Big Bow Mystery at PG:
https://www.gutenberg.org/ebooks/28164