The first Scientology church was incorporated in December 1953 in Camden, New Jersey by L. Ron Hubbard, his wife Mary Sue Hubbard, and John Galusha, although the Hubbard Association of Scientologists International (HASI) had already been operating since 1952 and Hubbard had been selling Scientology books and other items. Soon after, he explained the religious nature of Scientology in a bulletin to all Scientologists, stressing its relation to the Dharma. The first Church of Scientology opened in 1954 in Los Angeles.