This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Learned Society gathers nine scientific and scholarly bodies that recur across the atlas's coverage of paranormal claims, from opposite sides of that examination.
Four exist to investigate psychical phenomena directly. The Society for Psychical Research, founded in London in 1882 under Henry Sidgwick, pioneered large scale case collection and statistical testing that shaped later parapsychology. The American Society for Psychical Research, organized in Boston in 1885, operated as a branch of the London society before its independent reconstitution in 1906. The Parapsychological Association, founded in 1957 at J. B. Rhine's initiative, became an affiliate of the American Association for the Advancement of Science in 1969, giving the field a form of mainstream scientific recognition it had lacked. The Committee for Skeptical Inquiry, founded in 1976 as CSICOP by Paul Kurtz, applies the opposite scrutiny, evidence based examination of paranormal claims.
Four are general scientific academies that served as the establishment body against which unorthodox claims were measured. The Royal Society saw fellows including William Crookes investigate psychic claims without institutional endorsement. The French Academy of Sciences produced the 1784 commission, including Benjamin Franklin, whose blinded report concluded Mesmer's animal magnetism was imaginary. The Royal College of Physicians repeatedly withheld recognition from mesmerism and homeopathy. The Pontifical Academy of Sciences appoints academicians for life on merit alone.
The International Astronomical Union stands apart, its 1930 constellation boundaries mattering only because astrology's signs do not follow them.