Amerika
When was the first mention of there ever being window cleaning services in literature? 1889?
The reason I ask this question is because I'm doing research and a kind person wh osaid that stained glass windos in the middle ages was the first time that we needed professional window cleaners like these as a full time job in the Latin West but I'm perturbed because I know that glass existed much earlier and even some ancient windows were made out of alabaster and I assume that these, too, would need cleaning services. I can't find any sources online so I am despertely looking for answers. Thank you.