Religion in American during the 1700s was vastly more homogenous than exists today. The Protestant denominations that dominated throughout the colonies, a legacy of the Crown of England's "Great Awakening," were the overwhelming religious influences during the period of colonization.
Over the ensuing 200 years, increased immigration from Ireland, the European continent, China, Muslim regions, and every other region of the globe created a broad diversity of religious affiliation throughout the United States. Today, virtually every conceivable religion is represented in the United States, from Buddhism to Catholicism, from Judaism to Islam. One of the fastest growing religions in America is the Church of Jesus Christ of Latter-Day Saints, the Mormons.
Freedom of religion, one of the central tenets of the U.S. Constitution, has been a strong motivator for persecuted religious minorities to emigrate to the United States over the last 100 years. The early prevalence of Protestant denominations, the result of English colonization, remain strong, but the diversity that exists today has transformed the way religion is discussed in the country today.