Sabbatarianism

Sabbatarianism is a movement within Protestantism whose proponents advocate that certain observances, specifically enumerated in a code of behavior or law, are required for Christians to properly observe the Sabbath or Sabbath principles. Its historical origins lie in Puritan Sabbatarianism, which delineated precepts for keeping Sunday holy in observance of Sabbath commandment principles. This observance of Sunday is the purest form of first-day Sabbatarianism, a movement which diminished and largely disappeared in the 18th century, though traces and influences remain today.