Debates over the proper relationship between church and state in America tend to focus either on the founding period or the twentieth century. Left undiscussed is the long period between the ratification of the Constitution and the 1947 Supreme Court ruling in Everson v. Board of Education, which mandated that the Establishment Clause applied to state and local governments. Steven Green illuminates this neglected period, arguing that during the 19th century there was a "second disestablishment." By the early 1800s, formal political disestablishment was the rule at the national level, and almost universal among the states. Yet the United States remained a Christian nation, and Protestant beliefs and values dominated American culture and institutions. Evangelical Protestantism rose to cultural dominance through moral reform societies and behavioral laws that were undergirded by a maxim that Christianity formed part of the law. Simultaneously, law became secularized, religious pluralism increased, and the Protestant-oriented public education system was transformed. This latter impulse set the stage for the constitutional disestablishment of the twentieth century. The Second Disestablishment examines competing ideologies: of evangelical Protestants who sought to create a "Christian nation," and of those who advocated broader notions of separation of church and state. Green shows that the second disestablishment is the missing link between the Establishment Clause and the modern Supreme Court's church-state decisions.

On May 10, 1776, the Second Continental Congress sitting in Philadelphia adopted a Resolution which set in motion a round of constitution making in the colonies, several of which soon declared themselves sovereign states and severed all remaining ties to the British Crown. In forming these written constitutions, the delegates to the state conventions were forced to address the issue of church-state relations. Each colony had unique and differing traditions of church-state relations rooted in the colony’s peoples, their country of origin, and religion. This definitive volume, comprising twenty-one original essays by eminent historians and political scientists, is a comprehensive state-by-state account of disestablishment in the original thirteen states, as well as a look at similar events in the soon-to-be-admitted states of Vermont, Tennessee, and Kentucky. Also considered are disestablishment in Ohio (the first state admitted from the Northwest Territory), Louisiana and Missouri (the first states admitted from the Louisiana Purchase), and Florida (wrestled from Spain under U.S. pressure). The volume makes a unique scholarly contribution by recounting in detail the process of disestablishment in each of the colonies, as well as religion’s constitutional and legal place in the new states of the federal republic.