Religion in North America began with the religions and spiritual practices of Native Americans. Later, religion also played a role in the founding of some colonies, as many colonists, such as the Puritans, came to escape religious persecution. Historians debate how much influence religion, specifically Christianity and more specifically Protestantism, had on the American Revolution. Many of the Founding Fathers were active in a local Protestant church; some of them had deist sentiments, such as Thomas Jefferson, Benjamin Franklin, and George Washington. Some researchers and authors have referred to the United States as a "Protestant nation" or "founded on Protestant principles," specifically emphasizing its Calvinist heritage. Others stress the secular character of the American Revolution and note the secular character of the nation's founding documents.
Protestantism in the United States, as the largest and dominant form of religion in the country, has been profoundly influential to the history and culture of the United States. African Americans were very active in forming their own Protestant churches, most of them Baptist or Methodist, and giving their ministers both moral and political leadership roles. The group often known as "White Anglo-Saxon Protestants" have dominated American society, culture, and politics for most of the history of the United States, while the so-called "Protestant work ethic" has long held influence over American society, politics, and work culture. In the late 19th and early 20th century, most major American Protestant denominations started overseas missionary activity. The "Mainline Protestant" denominations promoted the "Social Gospel" in the early 20th century, calling on Americans to reform their society; the demand for prohibition of liquor was especially strong. After 1970, the mainline Protestant denominations (such as Methodists, Presbyterians and Episcopalians) lost membership and influence. The more conservative Protestant evangelical, fundamentalist, and charismatic denominations (such as the Southern Baptists) grew rapidly until the 1990s and helped form the Religious Right in politics.
