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The original was posted on /r/todayilearned by /u/Upstairs_Drive_5602 on 2025-04-14 16:05:38+00:00.

Original Title: TIL that in Victorian Britain, arsenic-laced paint used in wallpaper was so common that doctors warned that “a great deal of slow poisoning is going on,” as toxic pigments turned home décor into a silent killer.