
Mysterious rapping, eerie music, otherworldly voices — witnesses ascribed these strange phenomena and others to the historic séances of Margery “Mina” Crandon, one of America’s most celebrated spiritualist mediums. Read more here.

With Helena Petrovna Blavatsky and others he founded the Theosophical Society in 1875 and became its president. In 1878 he and Blavatsky visited India. The two settled there in 1879 and in 1882 established the permanent headquarters of the Theosophical Society of Adyar, Madras. Olcott was born on August 2, 1832 and died on February 17, 1907.

Charles Hoy Fort (August 6, 1874 – May 3, 1932) was an American writer and researcher who specialized in anomalous phenomena. The terms Fortean and Forteana are sometimes used to characterize various such phenomena. Fort’s books sold well and are still in print. His work continues to inspire admirers, who refer to themselves as “Forteans,” and has influenced some aspects of science fiction.
Fort’s collections of scientific anomalies, including The Book of the Damned (1919), influenced numerous science fiction writers with their skepticism and as sources of ideas. “Fortean” phenomena are events which seem to challenge the boundaries of accepted scientific knowledge, and the Fortean Times (founded as The News in 1973 and renamed in 1976) investigates such phenomena.

Andrew Jackson Davis (August 11, 1826 – January 13, 1910), known as the “Poughkeepsie Seer,” was an early healing medium and spiritualist. As a young man, he developed the ability to go into magnetic trance on his own, and in that state, he was able to diagnose disease. In the late 1840s, he claimed he met the spirit of the ancient Greek physician, Galen, who gave him a magic staff that he believed he could use for healing.

Helena Petrovna Blavatsky, often known as Madame Blavatsky; was a Russian occultist, philosopher, and author who co-founded the Theosophical Society in 1875. She gained an international following as the leading theoretician of Theosophy, the esoteric movement that the society promoted. Read more about Madame Blavatsky here.

Sir Oliver Joseph Lodge, FRS (12 June 1851 – 22 August 1940) was a British physicist and writer involved in the development of, and holder of key patents for, radio. He identified electromagnetic radiation independent of Hertz‘s proof and at his 1894 Royal Institution lectures (“The Work of Hertz and Some of His Successors“), Lodge demonstrated an early radio wave detector he named the “coherer“. In 1898 he was awarded the “syntonic” (or tuning) patent by the United States Patent Office. Lodge was Principal of the University of Birmingham from 1900 to 1920.
Lodge was also noted for his Spiritualist beliefs and research into life after death, a topic on which he wrote many books, including the best-selling Raymond; or, Life and Death (1916), describing what he believed to be detailed messages through a medium from his deceased adult son who was killed in World War I.

William Stainton Moses (Nov. 5, 1839 – September 5, 1892) was an English cleric and spiritualist medium. He promoted spirit photography and automatic writing, and co-founded what became the College of Psychic Studies.

Victoria Woodhull (September 23, 1838 – June 9, 1927), a medium and carnival show clairvoyant, was the first woman-owned Wall Street brokerage house, the first woman to address a Congressional committee and the first woman to run for president. She championed free love, believed that marriage was institutionalized slavery and supported paid sex work.

Allen Kardec, the 19th Century founder of “Spiritism” and a man who changed the course of Latin American religious movements, was born on October 3, 1804.