sentences:  The second largest Christian practice is the Latin Rite of the Roman Catholic Church, which traces its history to the 6th century with Augustine's mission and was the main religion for around a thousand years.There are over 5 million adherents today, 4.5 million in England and Wales and 750,000 in Scotland, although fewer than a million Catholics regularly attend mass.The Church of Scotland, a form of Protestantism with a Presbyterian system of ecclesiastical polity, is the third most numerous on the island with around 2.1 million members.