Four years after this the Presbyterians, who were most numerous in the middle states, organized their government in a general assembly, which was also attended by Congregationalist delegates from New England in the capacity of simple advisers. The theological difference between these two sects was so slight that an alliance grew up between them, and in Connecticut some fifty years later their names were often inaccurately used as if synonymous. Such a difference seemed to vanish when confronted with the newer differences that began to spring up soon after the close of the Revolution. The revolt against the doctrine of eternal punishment was already beginning in New England, and among the learned and thoughtful clergy of Massachusetts the seeds of Unitarianism were germinating. The gloomy intolerance of an older time was beginning to yield to more enlightened views. In 1789 the first Roman Catholic church in New England was dedicated in Boston. So great had been the prejudice against this sect that in 1784 there were only 600 Catholics in all New England. In the four southernmost states, on the other hand, there were 2,500; in New York and New Jersey there were 1,700; in Delaware and Pennsylvania there were 7,700; in Maryland there were 20,000; while among the French settlements along the eastern bank of the Mississippi there were supposed to be nearly 12,000. In 1786 John Carroll, a cousin of Charles Carroll of Carrollton, was selected by the Pope as his apostolic vicar, and was afterward successively made bishop of Baltimore and archbishop of the United States. By 1789 all obstacles to the Catholic worship had been done away with in all the states. [Sidenote: Except in the instance of slavery, all these changes were favourable to union.]