American colonial history belongs to what scholars call the early modern period. As such, it is part of a bridge between markedly different eras in the history of the western world...
The American Protective Association was formed as a secret anti-Catholic organization in 1887. Using propaganda and rumor-mongering, the APA aimed to restrict Catholic immigration into the United States and to prevent Catholics from holding office. At its 1896 peak, the organization had 2.5 million members.