I posted this yesterday in r/askanthropology and it was suggested I post this question here. My friend asked me this question yesterday and I couldn’t find any good sources online, any answers or further reading material would be greatly appreciated :)
While waiting for a reply, u/pachacamac provided an answer 8 years ago. https://www.reddit.com/r/AskHistorians/comments/14qcz4/when_did_it_become_taboo_for_women_to_expose/c7fplqc