Scientology contribute a proportion of their income and comply with the Religious Technology Center (RTC) and its standards. Operating Thetan levels are offered only at Scientology's Advanced Organizations (Los Angeles, Sydney, East Grinstead and Copenhagen). The Flag Service Organization in Clearwater, Florida offers OT levels VI and VII. The Scientology ship "Freewinds" offers OT VIII. In 1955, Hubbard created a list of 63 celebrities targeted for conversion to Scientology. In a church policy letter in 1973, L. Ron Hubbard wrote, "The purpose of [the] Celebrity Centre is, to forward the expansion and popularization of Scientology through the arts." Scientology operates eight
Pro-Cathedral of the Holy Apostles Pro-Cathedral of the Holy Apostles The Pro-Cathedral of the Holy Apostles was the Roman Catholic cathedral in the city of Bristol, England from 1850 to 1973. The Pro-Cathedral was replaced in 1973 by the Cathedral Church of SS. Peter and Paul, also known as Clifton Cathedral. Work commenced on the building in 1834, but halted the following year when the foundations failed on what was a challenging hillside site. A second attempt to reinforce the foundations was made in 1843, but this again failed and the building lay abandoned until 1848 when a roof was placed on the half-completed building