And why doesn't the history part of the wiki article on bathing mention why they stopped bathing? Was it to do with the black plague?
You can see it here - https://en.wikipedia.org/wiki/Bathing
Clarity; There were public baths in the 13th century, but after that point, I've heard that it stopped. That's the period of history I'm wondering about. Sorry if I didn't make that clear.
EDIT: This got downvoted! Darn, I thought people could answer my question. =/
Is there really no one knowledgable about medieval bathing? I thought that would've been an interesting subject, in the context of how it later dissappeared, and in the pop-history misinformation about the 'dark ages' wherein no one was believed to have bathed at all.
I'm going to assume you mean the Roman public bath houses. There are several factors which contributed to the end of bath facilities in the post-Roman world.
The baths required a constant (and sometimes massive) water supply. The aqueducts provided that supply and when they started to fail, the baths stopped functioning as baths should. The water stopped circulating, no new water came in, and things got funky very quick. Then you from a healthy place to a place where mosquitoes breed.
The knowledge of how to make Roman waterproof cement became very scarce. That meant that once structures that required it began to age or got damaged, they could not be repaired. This included aqueducts, bath houses, public fountains, and even harbor installations.
The largest Roman baths were gigantic (the Baths of Caracalla for instance). They required an immense amount of water, and, equally as important, an army of attendants to operate. The fires which heated the caldaria had to be stoked at all times. When society changed, so did the availability of such labor.
Many of the baths were opulently decorated. When churches became more important than keeping a big vaulted space with no water going to it anymore, some of the baths got converted. A great example of this are the Baths of Diocletian, at the Piazza della Repubblica in Rome. That entire church is just one part of what used to be a gigantic bath complex. Check out the plan in wikipedia. I looked for a map overlay showing the modern city and the plan of the baths, but came up short.