ANSWERS: 2
  • The earliest known reference to a toothpaste is in a manuscript from Egypt in the 4th century A.D., which prescribes a mixture of powdered salt, pepper, mint leaves, and iris flowers. Many early toothpaste formulations were based on urine. However, toothpastes or powders did not come into general use until the 19th century.
  • not sure but whoever did, it was a good idea

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