Sun Myung Moon much more quickly." In 1971, Moon moved to the United States, which he had first visited in 1965. He remained a citizen of the Republic of Korea and maintained a residence in South Korea. In 1972, Moon founded the International Conference on the Unity of the Sciences, a series of scientific conferences. The first conference had 20 participants, while the largest conference in Seoul in 1982, had 808 participants from over 100 countries. Participants included Nobel laureates John Eccles (Physiology or Medicine 1963, who chaired the 1976 conference) and Eugene Wigner (Physics 1963). In 1974, Moon asked church members in
Unification Church of the United States faith backgrounds were given the marriage blessing previously given only to HSA-UWC members. In 2009 Sun Myung Moon's daughter In Jin Moon became president of the FFWPU of the United States. She worked to modernise FFWPU's worship style in an effort to involve younger members. In 2014 FFWPU sponsored a 43-day bus tour of the United States for its members which included visits to each of Moon's original holy grounds. In 2015 it opened a conference center in Las Vegas, Nevada. In 2016 a study sponsored by the Unification Theological Seminary found that American FFWPU members were divided in their