Despite opposition from its more believing elements, the Anglican Church very clearly began to cede the moral high ground to modernism at the bishops' Lambeth Conference of 1930. Here, the necessary liberal opening to artificial birth control was granted. This then became a major stimulus to the publication of one of the greatest of the interwar Papacy's encyclical letters, Casti Connubi of December of the same year. It covered four major topics: the sanctity of marriage, opposition to eugenics, positions on birth control and the purpose of sexuality, and reaffirmation of the prohibition on abortion. Presented in Gardone, Italy in July of 2018.