History of the Catholic Church in the United States British-America-born Catholic priest. In 1788, after the Revolution, John Jay urged the New York Legislature to require office-holders to renounce foreign authorities "in all matters ecclesiastical as well as civil." In one state, North Carolina, the Protestant test oath would not be changed until 1868. The Catholic population of the United States, which had been 35,000 in 1790, increased to 195,000 in 1820 and then ballooned to about 1.6 million in 1850, by which time, Catholics had become the country’s largest denomination. Between 1860 and 1890 the population of Roman Catholics in the United States tripled primarily through immigration and
United Presbyterian Church in the United States of America United Presbyterian Church in the United States of America The United Presbyterian Church in the United States of America (UPCUSA) was the largest branch of Presbyterianism in the United States from May 28, 1958, to 1983. It was formed by the union of the Presbyterian Church in the United States of America (PCUSA), often referred to as the "Northern" Presbyterian Church, with the United Presbyterian Church of North America (UPCNA), a smaller church of Covenanter-Seceder tradition at a conference in downtown Pittsburgh, Pennsylvania, in May 1958. Vigorous ecumenical activity on the part of PCUSA leaders led to this merger, something