Also known as the Roman Catholic Church. A major Old Earth division of Christianity, based on forgiveness of sins, the sacrament of the Mass, and distinguished from other Christian denominations by a religious hierarchy with the pope as the supreme head of the Church. The Catholic Church and other major Christian bodies began to diverge after seventh Christian ecumenical council (other churches may refer to it as the last ecumenical council) in 1182 AT (787 AD). Important theologians included Thomas Aquinas and Saint Augustine. Though it had achieved worldwide distribution due to the expansion of European cultural and political influence over the course of the late Agricultural Age and the Industrial Age, and was at one point the largest single religion on the planet, the Catholic Church was eventually undermined by various factors, including declining priesthood during the Information Age, and the emergence of the Universalist Church in the early Interplanetary Age. The religion was revived by Evangelion of Umbriel during the early First Federation period, as the Reformed Catholic Church.