The Ekklesia Timeline.

The P'rushim (Pharisees, "separated ones") emerge in the Hasmonean period and begin building an oral tradition layered atop the written Torah — the seedbed of what later becomes the Oral Torah. The Tzedukim (Sadducees, named for the priestly line of Tzadok) take Temple administration, accept only the written Torah but in practice embrace Hellenistic philosophy, deny resurrection, and align with Roman power. Yeshua critiques both throughout the Gospels: the Pharisees for "making the commandment of God of none effect by your tradition" (Matthew 15:6), the Sadducees for "knowing not the Scriptures, neither the power of God" (Matthew 22:29). The first man-made systems layered atop the covenant.

After the Temple's destruction in AD 70, Yochanan ben Zakkai establishes a Torah academy at Yavneh. The Pharisaic oral tradition is recast as Torah She'be'al Peh — the "Oral Torah" — and claimed to have been given to Moshe at Sinai alongside the written Torah, then passed down orally for fifteen hundred years. Judah HaNasi codifies it into the Mishnah around AD 200. The Gemara follows, completed as the Babylonian Talmud around AD 500 and the Jerusalem Talmud somewhat earlier. The Talmud becomes co-authoritative with written Torah and in practice often supersedes it. Every modern denomination of Judaism — Orthodox, Hasidic, Conservative, Reform, Reconstructionist — descends from this codification. The Karaite line later emerges as the explicit protest against it.

Augustine systematizes the doctrines that harden into Catholic orthodoxy. Replacement theology — the church as "the new Israel" — is given philosophical scaffolding. He defends infant baptism on the basis of inherited original sin, codifies amillennial eschatology (later picked up by Rome and the Reformers), articulates the doctrine of predestination Calvin will inherit, and authors "just war" theory. In his framework, Israel is permanently displaced; Torah becomes obsolete. His shadow falls across every Western branch that follows — Catholic, Lutheran, Reformed, evangelical.

In AD 610, Muhammad ibn Abdullah claims revelations from the angel Gabriel in the cave of Hira near Mecca. In AD 622, he migrates to Medina. The Hijra marks year one of the Islamic calendar. The Quran is compiled after his death in AD 632, claimed to be the final and uncorrupted revelation from Allah, superseding both the Torah and the Brit Chadashah (New Covenant). Yeshua is honored as Isa, a prophet, but His divinity and crucifixion are denied. The direction of prayer (qibla) shifts from Jerusalem to Mecca. By AD 691, the Dome of the Rock rises on the Temple Mount. Today, Islam claims roughly 2 billion adherents — the world's second-largest religion. A system that names Avraham as father but rejects the covenant lineage that carries through to Yeshua.

After Muhammad's death, the question of succession divides his followers. The Shia (Shi'at Ali, "party of Ali") hold that leadership should pass through Muhammad's bloodline starting with his cousin and son-in-law Ali ibn Abi Talib. The Sunni (Ahl as-Sunnah, "people of tradition") hold that leadership was rightly assumed by the elected caliphs Abu Bakr, Umar, and Uthman. Ali is assassinated in AD 661. His son Husayn is killed at the Battle of Karbala in AD 680. The split is permanent. Today Sunnis are roughly 85 to 90 percent of Muslims; Shias are 10 to 15 percent, concentrated in Iran, Iraq, and Lebanon. Each branch has its own legal schools, theological positions, and competing claims to Islamic legitimacy.

The mystical-ascetic tradition within Islam, developing through the 8th to 13th centuries. Rabia al-Adawiyya (d. 801) is among its earliest voices; al-Hallaj is executed in 922 for claiming union with God; Rumi (1207–1273) and Ibn Arabi (1165–1240) shape its mature theology. Centered on tasawwuf (purification), dhikr (remembrance of Allah), and the master-disciple relationship through Sufi orders (tariqas). Tolerated by mainstream Sunni Islam, opposed by Salafists as innovation. Influences Persian poetry, Ottoman culture, and South Asian Islam.

Centuries of accumulated tradition rupture into mutual excommunication. Papal claims of universal authority, the filioque clause inserted into the Nicene Creed without ecumenical consent, and ritual disagreements about leavened versus unleavened bread split the Western and Eastern churches into Roman Catholic and Eastern Orthodox. Both retain replacement theology, infant baptism, Sunday worship, the veneration of icons, and the Constantinian severance from Hebraic roots.

Luther's 95 Theses challenge papal indulgences and launch Sola Scriptura. He breaks Rome's ecclesial authority — but keeps infant baptism, replacement theology, the institutional structure, and Sunday worship. Late in life he writes "On the Jews and Their Lies" (1543), advocating the burning of synagogues, the destruction of Jewish homes, and the seizure of their books — language that would be quoted approvingly by the Third Reich four centuries later. The Reformation reshuffles Catholic theology; it does not return to the Hebraic trunk.

A radical reformation — believers' baptism by personal confession, separation of church and state, refusal of military oaths, communal living. Persecuted by Catholics, Lutherans, and Reformed alike — Manz is drowned by the Zurich council, thousands are executed across Europe. Theologically a step closer to the trunk on practice, but still bound to Reformation framework, replacement theology, and Sunday worship. Spawns Mennonites, Hutterites, Amish, and the broader free-church movement.

A political break, not a theological one. Rome refuses Henry's request to annul his marriage to Catherine of Aragon; he passes the Act of Supremacy declaring himself Supreme Head of the Church of England. The doctrine, liturgy, episcopate, and sacraments remain largely Catholic. The monarch — not the Pope — becomes head of the church. Anglicanism becomes the established religion of the English crown, exported with empire to America, Africa, India, and Australia. Spawns Episcopalian and global Anglican Communion.

Calvin systematizes Augustinian theology into the Five Points (TULIP): total depravity, unconditional election, limited atonement, irresistible grace, perseverance of the saints. God is said to elect some to eternal salvation and others to eternal damnation before creation — a doctrine of double predestination. Sabbath is dismissed as "ceremonial" and replaced with a Christian-Sunday observance. Geneva becomes a theocracy under his oversight; Servetus is burned at the stake for denying the Trinity. Calvinism shapes Puritanism, Presbyterianism, the Dutch Reformed tradition, and most modern evangelical theology.

Believers' baptism by full immersion, congregational governance, separation of church and state. Rejects infant baptism but retains Sunday worship and replacement theology. Spawns Southern Baptist (the largest Protestant body in America), American Baptist, Reformed Baptist, Independent Fundamentalist Baptist, and dozens of smaller subdivisions. Doctrinally varied — Calvinist, Arminian, dispensationalist — united mainly by anti-paedobaptism.

A revival movement within Anglicanism that becomes its own denomination after Wesley's death. Holiness, sanctification, methodical devotion. Wesleyan-Arminian theology rejects Calvinist predestination in favor of universal atonement. Spawns Holiness churches, Wesleyan Methodist, Free Methodist, Nazarene, Salvation Army, and is the theological soil from which Pentecostalism later grows.

Founded in the Arabian Peninsula by Muhammad ibn Abd al-Wahhab (1703–1792) in alliance with Muhammad ibn Saud — the partnership that becomes the religious foundation of modern Saudi Arabia. Rejects Sufism, shrine veneration, and theological speculation as bid'ah (innovation), departing from the practice of the first three Islamic generations (the Salaf as-Salih). Spawns the wider Salafi movement, the Muslim Brotherhood (1928), and ideological currents that shape modern jihadist organizations.

Emerges in 18th-century Ukraine. The Baal Shem Tov teaches that ecstatic mystical experience can substitute for rigorous scholarship, and that the Tzaddik (the saintly leader) functions as a spiritual intermediary between disciples and God — a structure that parallels Catholic priesthood in form. Spawns the Chabad-Lubavitch, Satmar, Breslov, Belz, and Ger dynasties, each centered on a hereditary Rebbe.

Born in early 19th-century Germany during the Enlightenment, Reform Judaism strips Torah of binding authority, abandons kashrut and Sabbath observance for most adherents, and reframes Judaism as "ethical monotheism" — indistinguishable in practice from liberal Protestantism. Israel Jacobson opens the first Reform temple in Seesen in 1810. Abraham Geiger gives it theological scaffolding. Today the largest Jewish denomination in America.

Joseph Smith claims new revelation — golden plates translated by seer stones into the Book of Mormon, additional living prophets, ongoing scripture (Doctrine and Covenants, Pearl of Great Price). A wholly distinct theology of God (an exalted man), of man (a potential god), and of salvation (degrees of glory, eternal marriage, baptism for the dead). Most theologians outside the LDS tradition — including evangelicals, Catholics, and Eastern Orthodox — classify it as a separate religion, not a Christian denomination.

Born from William Miller's failed prediction of Yeshua's return on October 22, 1844 — "the Great Disappointment." Ellen G. White becomes the movement's prophetess and produces voluminous extra-biblical writings still treated as authoritative. They restore seventh-day Sabbath observance — a partial return toward the trunk — yet are bound by White's prophetic authority and a unique "investigative judgment" doctrine that is found nowhere in Scripture but central to Adventist theology. Note: Seventh-Day Adventist (SDA) is not the same as Seventh-Day Baptists, an older Sabbath-keeping Protestant tradition founded in 1671, nor as the Russian Subbotniks of the 1700s. The names are similar; the histories are not. See Notes below.

Russell denies the deity of Yeshua, the personality of the Holy Spirit, and eternal punishment. The Watchtower Society produces its own translation — the New World Translation — that conforms to the movement's theology rather than the underlying Greek and Hebrew. A rolling history of failed end-time predictions: 1914, 1925, 1975. Members are forbidden blood transfusions, military service, holiday celebration, and continued association with former members. A separate theological universe.

Emerges as the middle path between Reform's full abandonment of halacha and Orthodoxy's full preservation. Solomon Schechter shapes the American movement through the Jewish Theological Seminary (1886). Permits halachic adaptation to modern circumstances — driving cars on Shabbat, mixed seating, eventually women rabbis. The dominant non-Orthodox Jewish denomination in 20th-century America.

Founded in 1889 in Qadian, Punjab, by Mirza Ghulam Ahmad (1835–1908). Claims to be the promised Messiah, the Mahdi, and a continuing prophet after Muhammad — a direct contradiction of mainstream Islam's doctrine that Muhammad was the seal of prophethood. Officially declared non-Muslim by Pakistan in 1974 and persecuted across the Sunni world. Roughly 10 to 20 million adherents globally today. The Islamic parallel to Mormonism: new revelation through a new prophet, declared heretical by the parent tradition.

The Azusa Street Revival in Los Angeles ignites the modern Pentecostal movement. Tongues, prophecy, divine healing, and Spirit baptism are taught as a "second blessing" subsequent to conversion. Branches into Assemblies of God, Foursquare, Church of God in Christ, Oneness Pentecostalism, and the global Pentecostal-Charismatic stream — now the largest single tradition within Protestantism, with an estimated 600 million adherents worldwide.

Pentecostal practice exported into Catholic, Anglican, Lutheran, and mainline Protestant streams. Tongues, prophetic words, healing services, contemporary worship. Reshapes evangelical Christianity globally and produces the modern "praise and worship" industry, complete with stage lighting, fog machines, and emotional-arc-driven service design.

"Just the Bible" as branding — but in practice, a fusion of evangelical Calvinism, charismatic worship, and seeker-sensitive marketing. Doctrine flattened to the lowest common denominator to maximize attendance. Pastors function as CEOs, services as productions, members as customers. Replacement theology, Sunday worship, and Constantine's calendar carried forward, now repackaged with stage lighting and Instagram. The largest growth segment of American Christianity.