Universalists are the members of the school of theology or philosophy which holds, with different modifications, the doctrine that all mankind will reach a final state of happiness hereafter, with perhaps a passage, in this world or elsewhere, through a period of expiatory probation. The doctrine, which has had a considerable development in America, owed much of its impulse to be Rev. J. Murray, who went to New Jersey in 1774, and became the disciple of Mr. Relly, who is an advocate of its tenets. Mr. Ballon also did much to spread it in the latter part of the 18th century. The Pelagians of old held the doctrine, as do also many Unitarians.