no-smoking 的詞源

"不允許吸菸"，1905年； 該標誌的措辭本身可以追溯到1817年。

Smoking is a vice to [sic] — and a national one, of such magnitude that railroad corporations throughout all their routes in the United States, have a special command in large letters, conspicuously placed at depots and inside of the cars — "No smoking allowed here." ["The Sailor's Magazine," December 1840]

吸菸是一種惡習 - 一種如此巨大的全國性惡習，以至於美國各地鐵路公司在其所有路線上都有一個特別的命令，用大字醒目地放置在車站和車內 - “此處禁止吸菸。” 【《水手雜誌》，1840年12月】