The Universal House of Justice is the supreme governing institution of the Bahá'í Faith. It is a legislative institution with the authority to supplement and apply the laws of Bahá'u'lláh, the founder of the Bahá'í Faith, and exercises a judicial function as the highest appellate institution in the Bahá'í administration. The institution was defined in the writings of Bahá'u'lláh and `Abdu'l-Bahá, Bahá'u'lláh's successor, and was officially established in 1963 as the culmination of the Ten Year Crusade, an international Bahá'í teaching plan.[1] Its nine members are elected every five years from the male membership in good standing of the world community by an electoral college consisting of all the members of each Bahá'í National Spiritual Assembly throughout the world. The Seat of the Universal House of Justice and its members reside in Haifa, Israel, on the slope of Mount Carmel.[1] While being empowered to legislate on matters, the Universal House of Justice has, since its inception, limited its exercise of this function. Instead it has generally provided guidance to Bahá'ís around the world through letters and messages.[2] The books and documents published by the Universal House of Justice are considered authoritative and its legislative decisions are considered infallible to Bahá'ís.[3] The institution has also collected and published extracts from the writings of the Báb, Bahá'u'lláh and `Abdu'l-Bahá.[2] Bahá'u'lláh, the founder of the Bahá'í Faith, in his Most Holy Book (the Kitáb-i-Aqdas, also known as his book of laws), first ordains the institution of the House of Justice and defines its functions. The institution's responsibilities are also expanded on and referred to in several other of Bahá'u'lláh's writings including in his Tablets of Bahá'u'lláh. In those writings Bahá'u'lláh writes that the Universal House of Justice would assume authority over the religion, and would consider matters that had not been covered by himself; he stated that the members of the institution would be assured of divine inspiration, and have the regard for all peoples and safe-guard their honour.[1] Later, `Abdu'l-Bahá, Bahá'u'lláh's son and successor, in his Will and Testament, elaborated on its functioning, its composition and outlined the method for its election. He wrote that the Universal House of Justice would be under Bahá'u'lláh's protection, that it would be freed of error, and that obedience to it would be obligatory. `Abdu'l-Bahá first used the term "Universal House of Justice" to distinguish the supreme body from those local 'Houses of Justice' to be established in each community, and the secondary 'Houses of Justice' (current Bahá'í national spiritual assemblies). He also stated that the institutions decisions could be by majority vote, but that unanimous decisions were preferred, and that it would be elected by the members of the secondary Houses of Justice. He also confirmed Bahá'u'lláh's statements that its membership would be confined to men, and that the reason behind this decision would become apparent in the future.[1] While both `Abdu'l-Bahá and Shoghi Effendi, heads of the religion after Bahá'u'lláh, considered establishing the Universal House of Justice, they both declined to do so. Shoghi Effendi's reason was due to his belief in the weakness of the existing Bahá'í institutions — there were a very limited number of national spiritual assemblies and local spiritual assemblies. Thus during his lifetime, Shoghi Effendi prepared for the election of the Universal House of Justice, by establishing a strong administrative structure at the local and national levels. In 1951 when there were 9 national spiritual assemblies, Shoghi Effendi appointed members to the International Bahá'í Council, and described it as an embryonic international House of Justice. After Shoghi Effendi's unexpected death in 1957, the Hands of the Cause directed the affairs of the religion and announced that the election of the Universal House of Justice would occur in 1963 at the end of the Ten Year Crusade, an international teaching plan instituted by Shoghi Effendi.[1] In 1961 the International Bahá'í Council was changed to an elected body, with members of all National Spiritual Assemblies voting for its members. Then in April 1963 the first Universal House of Justice was elected, six years after the passing of Shoghi Effendi, by 56 national spiritual assemblies. The date of the election coincided with the completion of the Ten Year Crusade and also with the first centenary anniversary of the public declaration of Bahá'u'lláh in the Garden of Ridván in April 1863. Since then the Universal House of Justice has acted as the head of the religion; in 1972 it published its constitution.[1][4] The Universal House of Justice is elected through secret ballot and plurality vote in a three-stage election by adult Bahá'ís throughout the world. The House of Justice is elected without nominations or campaigning and all adult male members of the Bahá'í Faith are eligible for election to the House.[5] The body is elected every five years during a convention of the members of the various National or Regional Spiritual Assemblies (NSAs) across the world. Each member of the various NSAs, who were themselves elected by the Bahá'ís of their country, votes for nine adult male Bahá'ís. The nine people who have the most votes are elected onto the Universal House of Justice. Women are not eligible for election to the Universal House of Justice. `Abdu'l-Bahá stated that the reason for this will become clear in the future, and that women and men are spiritually equal.[1] For more on this issue see Bahá'í Faith and gender equality. The most recent full election was in April 2008 when 166 National and Regional Spiritual Assemblies were in existence. About a thousand Bahá’ís from 153 countries were present at the 10th International Bahá’í Convention at the Bahá'í World Centre in Haifa.[6] The Universal House of Justice today guides the growth and development of the global Bahá'í community. The general functions of the Universal Houses of Justice, as stated by Bahá'u'lláh include to promulgate the cause of God, to preserve the law, to administer social affairs, to educate the people's souls, to guarantee the education of children, to make the world prosperous, and to care of the elderly and the ill who are in poverty.[7] According to its constitution, the Universal House of Justice itself states that "The provenance, the authority, the duties, the sphere of action of the Universal House of Justice all derive from the revealed Word of Bahá'u'lláh which, together with the interpretations and expositions of `Abdu'l-Bahá and of Shoghi Effendi ... constitute the binding terms of reference of the Universal House of Justice and are its bedrock foundation." [4] Some of the powers and duties according to the constitution include:[7] Furthermore, the Universal House of Justice is instructed by Bahá'u'lláh to exert a positive influence on the general welfare of humankind, to promote a permanent peace among the nations of the world, ensure the "training of peoples, the up building of nations, the protection of man and the safeguarding of his honour".[7][8] The Universal House of Justice is supported by the elected national and local governing bodies of the Bahá'í Faith, (the National Spiritual Assemblies and Local Spiritual Assemblies respectively). It has, furthermore, created several appointed institutions to support its work around the world; among these are the Continental Board of Counsellors and the International Teaching Centre. The Universal House of Justice is also given the responsibility of adapting the Bahá'í Faith as society progresses, and is thus given the power to legislate on matters not explicitly covered in the Bahá'í sacred texts. While the Universal House of Justice is authorized to change or repeal its own legislation as conditions change, it cannot dissolve or change any of the laws which are explicitly written in the sacred texts.[1][7] Shoghi Effendi has written: "... the Universal House of Justice has been invested with the function of legislating on matters not expressly revealed in the teachings.... whose exclusive right and prerogative is to pronounce upon and deliver the final judgement on such laws and ordinances as Bahá'u'lláh has not expressly revealed.... Neither the Guardian of the Faith nor any institution apart from the International House of Justice can ever usurp this vital and essential power or encroach upon that sacred right."[9] In the same book, Shoghi Effendi mentions that certain issues were left intentionally for the House of Justice to apply and legislate on as time progressed: "Severed from the no less essential institution of the Universal House of Justice this same System of the Will of 'Abdu'l-Bahá would be paralyzed in its action and would be powerless to fill in those gaps which the Author of the Kitáb-i-Aqdas has deliberately left in the body of His legislative and administrative ordinances."[10] While being empowered to legislate on matters, the Universal House of Justice has, since its inception in 1963, been limited in its exercise of this function. Instead it has generally provided guidance to Bahá'ís around the world; this guidance has generally been through the form of letters and messages, much like Shoghi Effendi's communications. Many of these letters have been published in compilations and are regarded as divinely empowered and authoritative; its legislative decisions are considered infallible to Bahá'ís.[2][3] The letters cover a range of subjects including teaching, prayer, family life, education and Bahá'í administration.[2] The institution has also collected and published extracts from the writings of the Báb, Bahá'u'lláh and `Abdu'l-Bahá. In 1992 they published the Kitáb-i-Aqdas, Bahá'u'lláh's book of laws in English, and further translations have since been published.[2] During these endeavours, they established departments of research and archives at the Bahá'í World Centre, and, as of 1983, have collected over 60,000 letters of Bahá'u'lláh, `Abdu'l-Bahá and Shoghi Effendi. These collected works have been used as a base in the deliberations of the Universal House of Justice.[2]