The Protestant work ethic, also known as the Calvinist work ethic or the Puritan work ethic, is a work ethic concept in theology, sociology, economics and history which emphasizes that diligence, discipline, and frugality are a result of a person's subscription to the values espoused by the Protestant faith, particularly Calvinism.. The phrase was initially coined in 1904–1905 by …

The mainline Protestant churches (also called mainstream Protestant and sometimes oldline Protestant) are a group of Protestant denominations in the United States that contrast in history and practice with evangelical, fundamentalist, and charismatic Protestant denominations. Some make a distinction between "mainline" and "oldline", with the former referring only to …