Also, when was it that getting a clean shaved face became a regular event?
Hiya, FYI shaving dates back into prehistory, so it may be worth x-posting to our sister sub, /r/AskAnthropology.
Meanwhile, you'll find a few threads on early shaving and hair removal in the FAQ: https://www.reddit.com/r/AskHistorians/wiki/health#wiki_hair