 It is also referred to, especially in Traditionalist circles, as the Novus Ordo.It was promulgated, after the Second Vatican Council (1962–65), by Pope Paul VI in 1969 and published in the 1970 edition of the Roman Missal, and was revised by Pope John Paul II in 2000 (published in 2002).It was derived from the Tridentine Mass (the Mass of the Council of Trent), the first edition of which was promulgated in 1570 and the final edition in 1962.