Zalmoxis (GreekΖάλμοξις, also known as Salmoxis, Σάλμοξις, Zamolxis, Ζάμολξις, or Samolxis Σάμολξις) was a legendary social and religious reformer, regarded as the only true god by the ThracianDacians (also known in the Greek records as Getae Γέται). According to Herodotus,[1] the Getae, who believed in the immortality of the soul, looked upon death merely as going to Zalmoxis (who is also called Gebeleizis by some among them[2]) as they knew the way to become immortals.
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Sorry copy paste from wikipedia