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The original was posted on /r/todayilearned by /u/whstlngisnvrenf on 2024-04-29 15:18:52.

Original Title: TIL A French Socialite Named Blanche Monnier Was Imprisoned by Her Family in a Secret Room for 25 Years, From 1876 to 1901. According to officials, Monnier had not seen any sunlight for her entire captivity.