In the early years of what later became the United States, Christian religious groups played an influential role in each of the British colonies, and most attempted to enforce strict religious observance through both colony governments and local town rules.
Most attempted to enforce strict religious observance. Laws mandated that everyone attend a house of worship and pay taxes that funded the salaries of ministers. Eight of the thirteen British colonies had official, or “established,” churches, and in those colonies dissenters who sought to practice or proselytize a different version of Christianity or a non-Christian faith were sometimes persecuted.
Although most colonists considered themselves Christians, this did not mean that they lived in a culture of religious unity. Instead, differing Christian groups often believed that their own practices and faiths provided unique values that needed protection against those who disagreed, driving a need for rule and regulation.
Explanation:
In Europe, Catholic and Protestant nations often persecuted or forbade each other's religions, and British colonists frequently maintained restrictions against Catholics. In Great Britain, the Protestant Anglican church had split into bitter divisions among traditional Anglicans and the reforming Puritans, contributing to an English civil war in the 1600s. In the British colonies, differences among Puritan and Anglican remained.
Between 1680 and 1760 Anglicanism and Congregationalism, an offshoot of the English Puritan movement, established themselves as the main organized denominations in the majority of the colonies. As the seventeenth and eighteenth century passed on, however, the Protestant wing of Christianity constantly gave birth to new movements, such as the Baptists, Methodists, Quakers, Unitarians and many more, sometimes referred to as “Dissenters.”  In communities where one existing faith was dominant, new congregations were often seen as unfaithful troublemakers who were upsetting the social order.
Despite the effort to govern society on Christian (and more specifically Protestant) principles, the first decades of colonial era in most colonies were marked by irregular religious practices, minimal communication between remote settlers, and a population of “Murtherers, Theeves, Adulterers, [and] idle persons.” An ordinary Anglican American parish stretched between 60 and 100 miles, and was often very sparsely populated. In some areas, women accounted for no more than a quarter of the population, and given the relatively small number of conventional households and the chronic shortage of clergymen, religious life was haphazard and irregular for most. Even in Boston, which was more highly populated and dominated by the Congregational Church, one inhabitant complained in 1632 that the “fellows which keepe hogges all weeke preach on the Sabboth.”
Christianity was further complicated by the widespread practice of astrology, alchemy and forms of witchcraft. The fear of such practices can be gauged by the famous trials held in Salem, Massachusetts, in 1692 and 1693. Surprisingly, alchemy and other magical practices were not altogether divorced from Christianity in the minds of many “natural philosophers” (the precursors of scientists), who sometimes thought of them as experiments that could unlock the secrets of Scripture. As we might expect, established clergy discouraged these explorations.
In turn, as the colonies became more settled, the influence of the clergy and their churches grew. At the heart of most communities was the church; at the heart of the calendar was the Sabbath—a period of intense religious and “secular” activity that lasted all day long. After years of struggles to impose discipline and uniformity on Sundays, the selectmen of Boston at last were able to “parade the street and oblige everyone to go to Church . . . on pain of being put in Stokes or otherwise confined,” one observer wrote in 1768. By then, few communities openly tolerated travel, drinking, gambling, or blood sports on the Sabbath.
