During the 20th century, the church grew substantially and became an international organization. Distancing itself from polygamy, the church began engaging, first with mainstream American culture, and then with international cultures, particularly those of Latin America, by sending out thousands of missionaries across the globe. The church became a strong and public champion of monogamy and the nuclear family, and at times played a prominent role in political matters. Among the official changes to the organization during the modern area include the ordination of black men to the priesthood in 1978, reversing a policy originally instituted by Brigham Young. The church has also periodically changed its temple ceremony, gradually omitting certain controversial elements. There are also periodic changes in the structure and organization of the church, mainly to accommodate the organization's growth and increasing international presence.