The river in which Achilles was dipped is the River Styx.

Quick Scoop

  • In Greek mythology, Achilles’ mother Thetis dipped him in the River Styx to make him nearly invulnerable.
  • She held him by his heel, which did not touch the water and remained his only vulnerable spot, giving rise to the phrase “Achilles’ heel.”

In many later retellings and artworks, the scene of Thetis dipping baby Achilles into the dark waters of the Styx has become one of the most iconic images of Greek myth.

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