Which Christian denomination were the first permanent European settlers in what is now the United States of America?

The first permanent European settlers in the United States of America were Puritans.

Explanation:

Puritanism was an active movement in England, Scotland and later in New England from the 16th to the 17th century, which advocated a far-reaching reformation of the church according to evangelical-reformed or Calvinist principles.

Many Puritans emigrated from England to the British colonies in New England in the 17th century. Since the population consisted primarily of Puritans in the first decades of the existence of these colonies, Puritanism also became the dominant religion at that time. Due to the religious persecution of the Puritans in Europe, some of them tried to build religiously organized settlements in New England according to their ideals.