@maya I used to think about them a lot when I took 'Pagan Culture' in college. I mostly just remember them buying/selling urine for laundry use. Everything else left my brain.
@maya@aarroz that one continued for an extremely long time in a lot of places! its was an extremely easy and effective source of ammonia (a useful cleaning and bleaching solvent) prior to modern chemical processing (aka like, the 1900’s)