Henry Spencer Ashbee owned the largest collection of pornography and erotica in the world. Born in 1834, he began collecting clandestine material as a teenager and eventually amassed so much that he had to store it in a dedicated bachelor pad at Gray’s Inn, where he would invite fellow pornophiles to peruse the collection every Saturday. Ashbee’s unorthodox hobby went further: he sent in words related to genitals, pornography and bondage to the fledgling Oxford English Dictionary (OED) to be included in its pages.