1830 Edwin Budding of Glouscestershire signed an agreement for the manufacture of his invention, the lawn mower. His first customer was London's Regent's Park Zoo

That probably put a lot of goats and sheep out of work.

1897 A public reading of Bram Stoker's new novel, "Dracula, or, The Un-dead", was staged in London

I would like to have been there for that. I'll bet it was really something and probably everyone was afraid to go to sleep after.