The oldest surviving tarot cards are the 15 or so Visconti-Sforza tarot decks painted in the mid-15th century for the rulers of the Duchy of Milan. A lost tarot-like pack was commissioned by Duke Filippo Maria Visconti and described by Martiano da Tortona probably between 1418 and 1425, since the painter he mentions, Michelino da Besozzo, returned to Milan in 1418, while Martiano himself died in 1425. He described a 60-card deck with 16 cards having images of the Greek gods and suits depicting four kinds of birds. The 16 cards were regarded as "trumps" since in 1449 Jacopo Antonio Marcello recalled that the now deceased duke had invented a novum quoddam et exquisitum triumphorum genus, or "a new and exquisite kind of triumphs". Other early decks that also showcased classical motifs include the Sola-Busca and Boiardo-Viti decks of the 1490s.
Perhaps the best known of those who combined Swedenborg and Mesmer in a peculiarly North American synthesis was Andrew Jackson Davis, who called his system the "harmonial philosophy". Davis was a practicing Mesmerist, faith healer and clairvoyant from Blooming Grove, New York. He was also strongly influenced by the socialist theories of Fourierism. His 1847 book, The Principles of Nature, Her Divine Revelations, and a Voice to Mankind, dictated to a friend while in a trance state, eventually became the nearest thing to a canonical work in a spiritualist movement whose extreme individualism precluded the development of a single coherent worldview.
There are many stories of religious officials who benefited from spiritual medium gifts — Baptist preachers who would hear from their deceased relatives or other spirit guides, and many other religious figures whose belief in some form of communication with spirits is verifiable. This means that not all spiritual mediums are of the Voodoo or Caribo-African religious variety.
Ray Hyman discovered many methodological errors with Schwartz's research including; "Inappropriate control comparisons", "Failure to use double-blind procedures", "Creating non-falsifiable outcomes by reinterpreting failures as successes" and "Failure to independently check on facts the sitters endorsed as true". Hyman wrote "Even if the research program were not compromised by these defects, the claims being made would require replication by independent investigators." Hyman criticizes Schwartz's decision to publish his results without gathering "evidence for their hypothesis that would meet generally accepted scientific criteria... they have lost credibility."
Every month I give Intuition Circles which are an excellent chance for you to meet like minded souls and learn to open your intuitive abilities in a safe environment. We meditate, share, and do exercises to show you just how intuitive you already are. Many people become friends out of these circles and it is my intention to create a community of intuitives !