How did shaving emerge? Romans? for cleanliness and disciplinary reasons? or is shaving a pre-roman thing

by dubh_glais66

Question came up in OneY about beards and manliness and shaving and when shavin first emerged.

inermae

http://www.reddit.com/r/AskHistorians/wiki/health#wiki_on_the_history_of_facial_hair_and_the_shaving_thereof