Christian Sacraments
The Christian Sacraments have an Atlantean origin according to Professor Arysio dos Santos in an article on his website(a). Prof. Santos was a leading proponent of the idea of the Atlantis story being a memory of the inundation of vast areas of land around Indonesia at the end of the last Ice Age. While his theories relating to the destruction of Atlantis are quite credible, his paper on the sacraments is far less convincing.
(a) The Atlantean Origin Of The Seven Sacraments | Atlantis (archive.org)*