The term Neo-Theosophy is a term, originally derogatory, used by the followers of Blavatsky to denominate the system of Theosophical ideas expounded by Annie Besant and Charles Webster Leadbeater following the death of Madame Blavatsky in 1891. This material differed in major respects from Blavatsky's original presentation, but it is accepted as genuinely Theosophical by many Theosophists around the world.
After Blavatsky died in 1891, William Quan Judge became involved in a dispute with Henry Steel Olcott and Annie Besant over Judge allegedly forging letters from the Mahatmas. As a result, he ended his association with Olcott and Besant during 1895 and took most of the Society's American Section with him. He managed his new organization for about a year until his death in New York, whereupon Katherine Tingley became manager. The organization originating from the faction of Olcott and Besant is based in India and known as the Theosophical Society - Adyar, while the organization managed by Judge is known nowadays simply as the Theosophical Society, but often with the specification, "international headquarters, Pasadena, California." The Theosophical Society - Adyar is the group denounced as Neo-Theosophy by those who are followers of William Q. Judge and the original teachings of Madame Blavatsky; they do not accept what they regard as the Neo-Theosophical teachings of Annie Besant, Henry Olcott, and C. W. Leadbeater.