For review: the Mandeans (Mandaeans) are a Middle Eastern Gnostic religious group coming from an Aramaic-speaking background and with an Aramaic liturgy. They believe that John the Baptist was their founder. Their movement can be traced back to late antiquity and perhaps even to the early centuries CE. The term Sabian (Sabean, Sabaean) is often applied to them, but I am not sure of its exact import.
For past PaleoJudaica posts on the Sabean Mandeans start here and links (also here) and follow the links. And there are many other posts on the Mandeans in general. You can find those in the archives. Oh, and James McGrath, call your office.
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