Lafayette Ronald Hubbard (March 13, 1911 – January 24, 1986) was an American author and the founder of Scientology. A prolific writer of pulp science fiction and fantasy novels in his early career, in 1950 he authored Dianetics: The Modern Science of Mental Health and established organizations to promote and practice Dianetics techniques. Hubbard created Scientology in 1952 after losing the intellectual rights to his literature on Dianetics in bankruptcy. He would lead the Church of Scientology, variously described as a cult, a new religious movement, or a business, until his death in 1986. Wikipedia
Who is popular today?