Nicolasia Legation

Overview
The Nicolasia Legation was founded as apart of the Papal Program of Dum Diversas, whereby one of it's stipulations was the founding of Holy Roman colonies in the New World as a means of spreading the word of God to the Indians. Being one of the first & most dominant fixtures of North America; there the Papacy could stretch their influence to the East Coast & the Great Plains, surrounding the flourishing colony is tribes such as the tidewater shephardic tribes and the wastes of the Hudson on the east coast, the Chitimacha in the Louisiana swamp regions, and the Yup'ik Clique, a loyalist faction of the Ming Dynasty which would go on to be a large marauding force at the advent of  Dum Diversas's  objective of conquering Asia, and cutting off support by the Ming. Overall, Nicolasia sports a large sum of the Catholic Community outside of Europe, with the rest occupying enclaves in East Asia.

St. Louis
Founded as a Great Plains trade outpost on the Mississippi, Real St. Louis is noted for being a large center for American Catholics and a big brewing city. St. Louis largely remained neutral and isolated throughout the era, only having a very small role partly overseeing the occupation of Shanghai after the 13th Crusade. Archbishop Krazy dedicated the entire town to creating and copying books for the Vatican library. The Unfinished Library of St. Louis (S. Ludovici Vaticanæ Bibliothecæ), Washington Univerity, and Basilica of St. Louis IX of France were all investments from the city to put the North American town on the map as the true New Rome.

United Papal States of America
The colonization of St. Louis was the first phase of a Holy Roman American Empire, If completed all of Middle America would have been under Roman rule. The plan failed to take off due to a low population and transportation issues causing Saint Louis to be the only Papal city in America before the incident.

The only other settlement was Atlanta, or Columbia, in the American South, which was only founded shortly before the incident and was short lived.