  :::The problem with the religionfacts.com site is that again, like the problem with many web sources, it is written anonymously with no further assessable resources on either the author of the website or on the references used to compose the list of 12. Certainly the surviving friezes provide important evidence. Relevant to the debate over Demeter or Hades as an Olympian, if I am reading Lysianna correctly, Demeter appears as an Olympian in two friezes at Athens, one at Cos, and in a vase painting. Hades does not appear in any of these, (that is correct?) and add to that my own published citation that Hades worship was virtually non-existent in Greece, and the focus, in my opinion, becomes on finding a reliable, preferably printed source that indicates why Hades would have been included in any ancient mind's idea of the 'Twelve Olympians'  :::At any rate, if the friezes all include Demeter, there is no reasonable way to remove her entirely from this article.   