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The original was posted on /r/todayilearned by /u/Upstairs_Drive_5602 on 2025-04-16 20:10:48+00:00.

Original Title: TIL that as far as 5,000 B.C., people believed the false notion that the unmistakable pain that we now recognize as a toothache was caused by a tiny tooth worm, which was thought to bore into its victims’ teeth.