Quiverfull is a Christian theological position that sees large families as a blessing from God. It encourages procreation, abstaining from all forms of birth control, as well as natural family planning, and sterilization. Some sources have referred to the Quiverfull position as providentialism, while other sources have simply referred to it as a manifestation of natalism. It is most widespread in the United States but it also has adherents in Canada, Australia, New Zealand, the United Kingdom and elsewhere. One 2006 estimate put the number of families which subscribe to this philosophy as ranging from "the thousands to the low tens of thousands". Historical background As birth-control methods advanced during the late 19th and early 20th centuries, many conservative Christian movements issued official statements against their use, citing their incompatibility with biblical beliefs and ideals. In addition, there are those who contend that Quiverfull's "internal growth" model is a manifestation of a broader trend which is reflected in the lifestyles of such groups as Orthodox Jews (particularly Haredi and Hasidic Jews) and certain Christians including Orthodox Calvinists of the Netherlands, traditional Anabaptists (such as Old Order Amish, Old Colony Mennonites and certain Conservative Mennonites), some traditional Methodists of the conservative holiness movement, and Laestadian Lutherans of Finland. The former may also be a case of a manifestation of a movement of opinion within some ethnic, linguistic, religious, regional, or other identifiable groups whose members have expressed concern about their continued existence for historical or other reasons. Such philosophies and groups are diverse amongst themselves—being found in all segments and sectors of the political spectrum—and they usually represent, to varying extents, the diversity within their group. The manifestations of such movements and opinions include everything from comparatively high rates of in-group marriage being applauded and gently suggested, to more explicit calls for endogamy such as is the case with the Druze, to concerns which were expressed by Protestants in Northern Ireland about a higher birth rate amongst Catholics, to Decree 770 which was issued by Nicolae Ceaușescu's government in Romania with regard to contraception, and other population topics as part of its local variant of the North Korean ideology of Juche. Anglican allowance of birth control In 1930, the Lambeth Conference issued a statement permitting birth control: "Where there is a clearly felt moral obligation to limit or avoid parenthood, complete abstinence is the primary and obvious method", but if there