Home›Scientists, Physicians & Natural Philosophers›TraditionBrowse ByTraditionThis page groups historical figures by the religious tradition they belonged to or helped shape, connecting a person to the belief system that claims them. Wikipedia describes a tradition as "a system of beliefs or behaviors (folk custom) passed down within a group of people or society with symbolic meaning or special significance with origins in the past." Browsing this way lets a visitor read every founder, reformer or teacher from one tradition together, rather than finding them scattered by century.FactsTraditionSourcesComments (0)Reader Challenges (0)FactsDirectoryCategoryWell-attestedHistorical Figures 1TraditionFilter Results3 entriesAdherents TodayAllPew Research Center's Religious Composition of the World, 2010-2020 report puts the global Christian population at 2.3 billion as of 2020, about 28.8 percent of the world's population, up 122 million from 2010 even as its share of world population fell. (1)Pew Research Center's Religious Composition of the World, 2010-2020 report puts the global Muslim population at 2.0 billion as of 2020, about 26 percent of the world's population, up from 1.7 billion in 2010 and growing about twice as fast as the world's population as a whole over that decade. (1)Adherents Today MaximumAll2,000,000,000 (1)2,300,000,000 (1)Adherents Today MinimumAll2,000,000,000 (1)2,300,000,000 (1)Basis of the Membership FigureAllIndependent Survey (2)Scholarly or Demographic Estimate (2)Era of DeclineAllPublic pagan sacrifice was banned by the emperor Theodosius I in 391 CE, and traditional Roman religion was gradually suppressed as Christianity became the empire's official religion. (1)Era of Decline End YearAll400 (1)Era of Decline Start YearAll380 (1)Establishment StatusAllVaries by Province (2)Form of the ConfessionAllThe Nicene Creed and the Apostles' Creed are the two most widely shared credal statements across the branches of Christianity. (1)The shahada, the declaration that there is no god but God and Muhammad is His messenger, is Islam's central creed and the first of the five pillars. (1)FounderAllJesus of Nazareth; the movement was organised by his followers after his death (1)Muslims hold Islam to be the restoration of the primordial religion rather than a new founding (1)The Prophet Muhammad (c. 570-632) (1)How the Expectation Is EnforcedAllCodified Obligation With Consequences (1)Marriage Position DetailAllQur'an 4:3 states: "And if you fear that you shall not be able to deal justly with the orphan girls then marry (other) women of your choice, two or three, or four." Classical and contemporary Sunni and Shia jurisprudence alike reads this as permitting, not requiring, a man to be married to up to four wives at one time, on two conditions: material justice between the wives, in spending, clothing, and time, which Qur'an 4:129 immediately qualifies by noting that perfect justice in feeling, as opposed to material treatment, is not humanly possible and so is not what is required; and the financial capacity to support each wife. Monogamy remains the ordinary practice for most Muslims worldwide; the ruling recognizes polygynous marriage as licit rather than mandating it. (1)Membership Figure As OfAll2010-01-01 (2)2011-01-27 (1)2011-12-19 (1)2020-01-01 (2)Membership Over TimeAllBy 2020, the same Pew study found the global Christian population had risen by 122 million to 2.3 billion, even as its share of world population fell from 31 percent to 28.8 percent, as Sub-Saharan Africa overtook Europe as home to the largest share of the world's Christians. (1)By 2020, the same Pew study found the global Muslim population had grown 21 percent to 2.0 billion (26 percent of world population), growing twice as fast as the rest of the world's population over the decade, driven by Muslims having more children and a younger average age than members of any other major religion. (1)In its December 19, 2011 Global Christianity report, Pew Research Center estimated 2.18 billion Christians worldwide as of 2010, nearly a third of the estimated 6.9 billion global population, compiled from a country-by-country analysis of about 2,400 sources including censuses and nationally representative surveys. (1)In its January 27, 2011 report, Pew Research Center estimated about 1.6 billion Muslims worldwide as of 2010, 23.4 percent of the estimated 6.9 billion global population, compiled from roughly 1,500 sources across 232 countries and territories. (1)Pew's June 2025 update to its global religion modeling revised its own 2010 Christian estimate down slightly to 2.1 billion (31 percent of world population), a mild revision of the 2011 report's 2.18 billion figure for the same year, both recorded here side by side rather than one replacing the other. (1)Pew's June 2025 update to its global religion modeling revised its own 2010 Muslim estimate upward to 1.7 billion (24 percent of world population), a modest revision of the 2011 report's 1.6 billion figure for the same year, both recorded here side by side rather than one replacing the other. (1)Origin AccountAllChristianity traces its origin to the life, teaching, crucifixion and, in the faith of its adherents, resurrection of Jesus of Nazareth in Roman Judea in the first century. (1)Islam traces its origin to the revelations received by the prophet Muhammad in Mecca and Medina in the early seventh century, collected as the Quran. (1)Roman religion developed from early Latin and Etruscan cult practice and absorbed extensive Greek mythology and ritual through contact with Greek colonies in Italy, without a single founder. (1)Origin Period End YearAll500 BCE (1)50 (1)632 (1)Origin Period Start YearAll750 BCE (1)30 (1)610 (1)Place of OriginAllRoman Judaea and Galilee, spreading through the eastern Mediterranean (1)Rome and central Italy (1)The Hijaz, in western Arabia: Mecca and Medina (1)Position on MarriageAllMarriage may licitly be polygynous (1)Position on SexualityAllSame-sex orientation or practice is held to bar full membership or participation (1)The body holds no single settled position; the question is actively and openly contested within it (1)Position on UsuryAllInterest of any kind on a loan is forbidden (1)Practice StatusAllDiscontinued as a state religion (1)Living, and practised in varied local forms (1)Partly restricted: some elements are closed to outsiders (1)Sexuality Position DetailAllChristianity is governed by no single worldwide teaching authority, and its major bodies read at every point on this question today. The Roman Catholic Church's Catechism of the Catholic Church holds that homosexual acts are contrary to natural law while insisting that persons with homosexual tendencies must be accepted with respect, compassion and sensitivity, and reserves marriage to a man and a woman. The Russian Orthodox Church's Basis of the Social Concept, adopted at its Jubilee Bishops Council in August 2000, names homosexuality a sinful distortion of human nature and bars anyone who promotes it as a norm from work with children or youth or from military or reformatory positions, reaching beyond ordination. The United Methodist Church, one of the tradition's largest global bodies, ended its forty-year ban on LGBTQ clergy and same-sex marriage at its 2024 General Conference. The Anglican Communion, in its own 2022 Lambeth Conference Call on Human Dignity, states that its forty-two member provinces hold differing convictions and pastoral practices on this question, some blessing same-sex unions and others continuing to hold that marriage is exclusively the lifelong union of a man and a woman. No statement speaks for Christianity as a whole. (1)Classical Islamic jurisprudence treats homosexual acts, generally termed liwat in the legal literature, as unlawful across all four Sunni schools, though the schools differ on the exact legal category and punishment. The Shafi'i, Hanbali and main Maliki position hold the punishment mirrors that for zina under the hadd category, a fixed penalty applied only under strict evidentiary conditions such as four eyewitnesses or a clear confession; the Maliki school's own harshest reading holds both parties subject to execution regardless of marital status; the Hanafi school instead leans toward a discretionary punishment, ta'zir, set by a judge rather than a fixed hadd penalty, on the reasoning that the specific evidentiary threshold hadd requires was not met by the available textual evidence. Across all four schools, the same-sex attraction itself is treated as distinct from the act and is not, on its own, held to be sinful; the legal rulings address conduct. (1)Standard Rate ExpectedAllTwo and a half percent. (1)Standing Giving ExpectationAllZakat, one of the five pillars of Islam, obliges a Muslim whose accumulated wealth exceeds a minimum threshold (nisab) to give 2.5 percent of that qualifying wealth annually. The Quran (9:60) names eight categories of recipients. In several Muslim-majority countries zakat is collected by the state itself rather than left to the individual, giving the obligation a legal as well as a religious force there; elsewhere it is a personal duty of conscience understood to be as central to Islamic practice as prayer and fasting. (1)Status TodayAllHistorical; not practised continuously (1)Living tradition, practised today (2)Supreme BeingAllAllah, God, held to be one and without partner or equal. (1)The triune God, Father, Son and Holy Spirit, one being in three persons. (1)TheologyAllMonotheistic: one God (2)Polytheistic: many gods (1)Transgression CategoryAllAkl mal al-yatim: consuming the wealth of an orphan. (1)Al-tawalli yawm al-zahf: fleeing from the battlefield. (1)Qadhf: slandering chaste, believing women with unchastity. (1)Qatl al-nafs: killing a soul that Allah has forbidden, except by right. (1)Riba: consuming usury or interest. (1)Shirk: associating partners with Allah, the first and gravest of the Seven Destructive Sins (as-sab al-mubiqat). (1)Sihr: magic or sorcery. (1)Sin, understood as thought, word, deed or omission contrary to the will of God, ranging in Catholic moral theology from venial to mortal sin. (1)Usury Position DetailAllThe Quran's treatment of riba came in stages rather than all at once. An early Meccan verse, Surah Al-Rum 30:39, contrasted interest unfavorably with charity as moral guidance, without yet imposing a legal ban. After the migration to Medina the tone sharpened: Surah Al-Nisa 4:161 rebukes an earlier community for taking interest despite being forbidden it, and Surah Al-Imran 3:130, revealed after the Battle of Uhud, specifically condemns compounding interest. The final and complete prohibition, covering interest of any kind, came in Surah Al-Baqarah 2:275-281, revealed near the end of the Prophet's life and describing persistence in the practice as tantamount to war against God and His messenger. This is why contemporary Islamic finance avoids interest bearing loans altogether, structuring transactions instead as profit and loss sharing partnerships or cost-plus sales. (1)BrowseCompareChristianityTradition6 entriesIslamTradition1 entryRoman ReligionTradition1 entrySources1. Divinity Atlas Directory Taxonomy, First Edition Category Treetier 1Divinity Atlas Directory Prose, First Edition Category Descriptionstier 1Comments (0)No comments yet. 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