For each Christian doctrine, a timeline of how the belief developed across the centuries — earliest voice first, every claim footnoted to its source — alongside the cross-cutting arguments: single sub-claims (a proof-text, a parallel, a historical thesis) weighed on their own merits and given an assessment. The doctrines are grouped into families by theme; browse the full catalog below — each doctrine's heading links to its timeline, and beneath it every argument is rated and linked to its own page.
how the Church came to recognize which books are Scripture — the gradual, regional reception of the Old and New Testaments vs. the popular legend that the canon was fixed in one stroke at the Council of Nicaea (325). Traced from the earliest witnesses (Justin Martyr, c. 155; the Muratorian Fragment, c. 170) through Eusebius's sorting of the disputed books (c. 324), Athanasius's complete list (367), and the African councils of Hippo and Carthage (393–397), down to Luther's reshuffling of the antilegomena (c. 1522) — recognition by reception, not by a single decree.
is Tobit — with Judith, Wisdom, Sirach, Baruch, 1–2 Maccabees, the deuterocanon/Apocrypha — part of the Christian Old Testament? YES/NO verdicts across time: the Septuagint carried them, the Hebrew-minded Fathers and the Reformation excluded them, the African councils, Rome, Florence, and Trent affirmed them — settled by reception, not date.
how the account of the LXX’s making grew across time — from a royal commission (the Letter of Aristeas, Josephus) to the miracle of the seventy-two translators producing word-for-word identical versions in separate cells “by the Holy Spirit” (Irenaeus, Cyril, Epiphanius, Augustine), and the skeptics who called the cells a fable (Jerome).
the patristic-to-medieval charge — from Justin Martyr's debate with Trypho over the messianic proof-texts (c. 165), through Eusebius carrying it to the Genesis chronology (c. 325), down to the Syriac chronographers (Bar Hebraeus, c. 1286) — that rabbinic Judaism deliberately altered the Hebrew text while the older Septuagint preserved the true reading, vs. the modern text-critical finding (Tov; the Dead Sea Scrolls) that the LXX renders a different Hebrew Vorlage: divergent traditions, not corruption.
the textbook "Bible contradiction": David kills Goliath in 1 Samuel 17, yet 2 Samuel 21:19 (Masoretic Hebrew) says Elhanan the Bethlehemite "struck down Goliath the Gittite," while 1 Chronicles 20:5 has Elhanan kill "Lahmi the brother of Goliath." Nearly everyone agrees the Hebrew of 2 Samuel 21:19 was damaged in copying; the live dispute is the direction of the error — a concrete instance of the same Septuagint-vs.-Masoretic textual divergence traced on the rabbinic-corruption and Septuagint-origin pages. Traced from Josephus (c. 93), who smooths the crux by leaving the second giant unnamed, through the harmonizers who make Elhanan a byname of David (the Targum, Rashi, and a pseudo-Jerome etymology, "Adeodatus is David himself"), to Kennicott (1753) reopening it as a plain scribal corruption, the 19th-century split — Keil & Delitzsch holding Chronicles original, Wellhausen, Driver, and H. P. Smith holding Samuel primary and Chronicles a harmonization — McCarter's strong form (1984, Elhanan the original slayer), and Ozoliņš's measured recent verdict (2022) that Elhanan killed Goliath's unnamed brother.
not an internal contradiction but a manuscript variant: the Masoretic Hebrew of 1 Samuel 17:4 makes Goliath "six cubits and a span" (~9′9″), while the older witnesses — the Dead Sea Samuel scroll 4QSama, the Septuagint, and Josephus — read "four cubits and a span" (~6′9″), as the ESV footnotes. A concrete, high-recognition case of the same Septuagint-vs.-Masoretic divergence traced on the rabbinic-corruption and Septuagint-origin pages. Traced from the "four" of the older Greek and Qumran line (the Septuagint, c. 250 BC; 4QSama, mid-1st c. BC; Josephus, c. 93), through the "six" that fills the Latin, rabbinic, and Masoretic tradition (Jerome's Vulgate, c. 405; the Talmud, c. 500; Bede, c. 716; the Aleppo and Leningrad codices, c. 930–1010), to the modern text-critics — J. Daniel Hays (2005), with McCarter, Tov, and Ulrich — who argue "four" is original and the Masoretic "six" a later inflation, against Billington and Barrick's defense of the "six."
conscious survival vs. soul-sleep, and a structured Hades (Abraham’s bosom / torment / Tartarus) vs. two destinies only. Traced from Justin’s souls of the pious and unjust “waiting for the time of judgment” (c. 165) through the full patristic geography of Tertullian and Hippolytus (c. 220–235) and Aphrahat’s lone soul-sleep (c. 345), to the Westminster Confession’s two places and “none” besides (1646) and N. T. Wright’s resurrection-subordinated paradise (c. 2008).
the ancient, near-universal practice of prayer and alms for the dead vs. the distinctively Latin theory of a satisfactory cleansing fire before judgment, denied root and branch by the Reformation. Traced from 2 Maccabees' offering for the fallen (c. 124 BC) and Tertullian's yearly oblations for the dead (c. 211) through Gregory the Great's "cleansing fire before judgment" (c. 594) and Aquinas's temporal-debt system (c. 1274), to Calvin's wholesale rejection (c. 1559).
may the living address the saints in heaven, “Holy Mary, pray for us”? Praying to the saints (invocation — direct second-person address) is a distinct act from believing the saints intercede. The intercession-belief is early and near-uncontested — already Origen’s saints who “pray with and for” the living (c. 233); the dating of invocation proper is the live question — strict second-person petition surfaces clearly with Gregory of Nyssa (c. 381) and is taught outright from Rome by Gregory the Great (c. 604): a fourth-century development, or an older practice the apologists simply left unrecorded?
when a dead relative appears in a dream or a waking vision and reveals something true, is it the actual soul — conscious and acting — or only a likeness, worked by angels (or counterfeited by a demon) while the departed lie unaware? The fault line the Fathers drew runs between the ordinary dead (sealed away, not naturally attending us) and the glorified saints (granted awareness — the ground of prayer to the saints). Traced from Tertullian's demonic-phantom denial (c. 210) through Augustine's classic “likeness, not the soul” answer (c. 421) and Gregory the Great's revenants who “desire it of the living” (c. 593) to Aquinas's synthesis — naturally cut off, but sent by divine dispensation (c. 1274).
the belief that, in the Eucharist, the consecrated bread and wine are — not merely symbolize — the body and blood of Christ. Traced from Ignatius's "flesh of our Saviour" (c. 108) across the later spectrum of views: symbolic/memorialist (Zwingli), spiritual presence (Calvin), Lutheran sacramental union, and the realist patristic line the Council of Trent defined as transubstantiation.
why the historic Church held that the Eucharist may be offered only by an ordained bishop or priest, not by every believer: the Eucharist as the "pure offering" of Malachi 1:11, instituted by Christ for the apostles ("this do in remembrance of me") and committed to their ordained successors. Traced from Clement of Rome's appointed orders (c. 96) and Ignatius's one bishop presiding (c. 108), through the Didache and Justin Martyr reading Malachi's pure offering as the Eucharist (c. 155), to Cyprian's sacrificing priest (c. 253) and Aquinas's medieval synthesis (c. 1274) — set against the Protestant "priesthood of all believers."
should the infant children of Christians be baptized, or does baptism belong only to those old enough to profess faith for themselves? Traced from a possible earliest, implicit witness — Irenaeus (c. 180), who names infants among those "born again to God," his own term for baptism — to the earliest explicit one, Tertullian, who c. 203 urged that baptism be delayed for "little children," his objection itself presupposing that the practice already existed, across the tradition that came to receive infant baptism as apostolic custom. (Baby dedication is a subset of the same question.)
the claim that Baptists form an unbroken succession of true churches from the apostles — never part of Rome, not begun at the Reformation — versus the mainstream account that modern Baptists arose from early-seventeenth-century English Separatism. Charles Spurgeon's 1861 "we have an unbroken line up to the apostles" is the era's most-quoted endorsement; J. M. Carroll's The Trail of Blood (1931) gave the thesis its most concrete form — a fold-out chart of dissenting groups from Christ to the modern Baptists — and John MacArthur (c. 2018) restates its softer version, a perpetual remnant of true-gospel believers outside Rome rather than a documented church-by-church chain.
why the first Christians met in homes and built no houses of worship, and what the later move to dedicated buildings means — a fall from a New Testament "house-church" pattern, or continuity-by-circumstance once an illegal, persecuted body was free to build? Traced from Justin Martyr (c. 165), who at trial could name only the private lodging where his congregation met, through the earliest dedicated buildings — the church at Edessa (c. 202), beyond the Roman frontier, and the surviving Dura-Europos house-church (c. 233) — to the legalization that let churches multiply: the rescript of Gallienus (c. 260) and the Edict of Milan (313).
did Mary remain ever-virgin, or bear other children after Jesus? The whole question turns on the identity of the "brethren of the Lord" (Matthew 13:55; Galatians 1:19 etc.), read three ways in J. B. Lightfoot's naming (c. 1865): the Helvidian (sons of Joseph and Mary — denying the perpetual virginity), the Epiphanian (sons of Joseph by a former wife — preserving it), and the Hieronymian (maternal cousins — Jerome's reading, standard in the Latin West). Traced from the early witnesses to Joseph's prior marriage (the Protevangelium of James, c. 150) and Tertullian's dissent (c. 210), through the clash of Helvidius and Jerome (both c. 383) that fixed the cousin theory as the Western default, to Lightfoot's taxonomy that named the field.
as Christ is the second Adam who undoes the fall, so Mary is the second Eve whose obedient "yes" at the Annunciation (Luke 1:38) reverses the disobedience of the first Eve — a Christological recapitulation typology that became the seedbed of the later Marian doctrines. Traced from its earliest surviving form in Justin Martyr (Dialogue with Trypho 100, c. 160), through Irenaeus's "knot of Eve's disobedience loosed by the obedience of Mary" and Mary as the advocata of Eve (Against Heresies, c. 180), to Tertullian's "As Eve had believed the serpent, so Mary believed the angel" (On the Flesh of Christ, c. 210).
the title Theotokos ("God-bearer" / "Mother of God") — on its face about Mary, in its whole doctrinal career a claim about Christ: that the one she bore is God the Word made flesh, so the word was forged and fought over as a weapon of Christology, not of Marian devotion. Traced from the earliest certain literary use in Alexander of Alexandria's anti-Arian encyclical (c. 324), through Gregory of Nazianzus's orthodoxy-test ("severed from the Godhead," Letter 101, c. 382), to its flash-point in the Nestorian controversy — Cyril of Alexandria's Twelve Anathematisms (c. 430) against Nestorius's Christotokos — and its dogmatic settlement at the Council of Ephesus (431), reaffirmed at Chalcedon (451).
was Mary preserved free from original sin from the first instant of her conception? — one of the latest-developing Marian doctrines, defined as Catholic dogma only in 1854, and one the greatest medieval doctors actively opposed. Keeping apart Mary's sinless life (early and near-consensual — Augustine brackets her "out of honour to the Lord," c. 415) from the immaculate conception proper (late and disputed), the timeline runs through the scholastic opposition of Bernard of Clairvaux (Letter 174 against the new feast, c. 1140), Bonaventure, and Thomas Aquinas (an immaculate conception would be "derogatory to the dignity of Christ" as universal Saviour, Summa III q. 27, c. 1270), to Duns Scotus's "preservative redemption" (c. 1300) that broke the deadlock, and Pius IX's definition in Ineffabilis Deus (1854).
was Mary, at the end of her earthly life, taken up body and soul into heaven? — the belief the East tells as the Dormition ("falling asleep," presupposing her death) and the West defined as the Assumption only in 1950. The doctrine built around a silence: the New Testament is mute on Mary's end, and the first to raise the question, Epiphanius of Salamis (Panarion 78, c. 377), confesses that no one knows it. Traced from that silence through the apocryphal Transitus Mariae narratives (branded apocryphal by the Gelasian Decree), Gregory of Tours's first Western narrative affirmation (Glory of the Martyrs, c. 590), John of Damascus resting it frankly on tradition — the Euthymiac History and Chalcedon's empty tomb (c. 730) — and Paschasius Radbertus warning against the very apocrypha and leaving the bodily question open (Cogitis me, c. 860), to Pius XII's definition in Munificentissimus Deus (1950), whose guarded "having completed the course of her earthly life" deliberately leaves open whether Mary died first.
the early church's near-unanimous rejection of astrology — genethlialogy, the casting of a birth-horoscope to read a life's destiny — as astral fatalism that destroys free will, empties reward and punishment, and usurps God's providence (some Fathers adding that the fallen angels taught the art), while carefully sparing the legitimate astronomy that studies the heavens. Traced earliest-first from Ignatius (the Magi's star that "destroyed all magic") through Tatian, Bardaisan, Tertullian, Origen, Basil, and Augustine to Isidore's enduring astronomy/astrology distinction.
the legend, first written down by Josephus (c. AD 93–94), that the righteous line of Seth invented astronomy and, warned by Adam's prophecy of a double destruction of the world by fire and water, inscribed their discoveries on two pillars — one of brick, one of stone — so the knowledge would survive whichever catastrophe came, the stone pillar still standing "in the land of Siriad" in his day. Its spine is a pious counter-aetiology of astronomy: the same celestial science the Watcher tradition (1 Enoch 8; Tatian; Tertullian) blamed on the fallen angels, here credited instead to the holy line of Seth — the righteous half of the pair weighed on the astrology timeline's fallen-angels argument. It also crosses the knowledge-survives-the-deluge motif of Noah's Flood and the antediluvian-sage lore (Enoch the seventh from Adam) of the Nephilim. Josephus is so far the earliest witness on the timeline.
Scripture both promises that God speaks in dreams (Numbers 12:6; Joseph; Daniel; Matthew's warning angel) and cautions that “Dreams have deceived many” (Sirach 34:7) and that a false prophet's dream-sign may even come true and he still be rejected (Deuteronomy 13). The Fathers answered with a taxonomy of sources — from God, from demons, and from the body or the mind itself — and a duty to discern, since a dream's coming true does not by itself prove it divine. Traced from Tertullian's fourfold division (c. 210) through Athanasius on the dreaming soul, Augustine's threefold vision, and Gregory the Great's six kinds of dream, to Aquinas's rule that divining by dreams is lawful only where they come from God or nature, not the demons (c. 1271). Its near neighbour is dream-apparitions of the dead (whose act the dream-figure is).
the interpretive crux of the woman taken in adultery (John 7:53–8:11): twice the Evangelist says Jesus stooped and wrote with his finger, and twice omits the words — so what did he write? Traced from the fathers who guessed (Ambrose's Jeremiah oracle disowning the accusers; Jerome's enduring "he wrote their sins," the seed of a later scribal gloss; Augustine, who refused to say), through the schoolmen who catalogued the guesses (Bonaventure, Aquinas), to the modern legal and ritual reconstructions (Manson, Derrett) and the modern verdict that the content was left blank by design.
when was the book of Revelation written — and does the answer decide whether its "great tribulation" is the fall of Jerusalem in AD 70? Two camps: the late (Domitianic) date, c. AD 95–96, the majority patristic and modern-critical view, resting on Irenaeus's "towards the end of Domitian's reign" (c. 180) and the chorus after him — Clement of Alexandria (c. 200), Victorinus (c. 300), Eusebius (c. 324), and Jerome (c. 393); and the early (Neronian) date, c. AD 64–70, the minority preterist view, whose lone ancient external support is the Syriac heading that names Nero (6th c.) — Epiphanius (c. 375), the one patristic outlier, dates it earlier still, to Claudius. Reopened in the modern debate: the early date was the nineteenth-century critical mainstream (Moses Stuart, 1845; Westcott, Lightfoot, Hort, Farrar) and is pressed today by J. A. T. Robinson (1976) and Kenneth Gentry (1989), against the late-date consensus of Adela Yarbro Collins (1984), David Aune (1997), G. K. Beale (1999), and Craig Koester (2014).
what is the mark, and whose name is 666? The striking fact at the head of the tradition is that the earliest interpreters all expected a future Antichrist and offered candidate names by gematria — Teitan, Lateinos, and others — but none named Nero. Irenaeus (c. 180) rejects the 616 variant and floats three names without settling; Hippolytus (c. 200) and Victorinus (c. 300) prefer Latinus and Teitan/DICLUX; the Greek line — Oecumenius (c. 550) and Andreas of Caesarea (c. 614) — piles up descriptive names and then refuses to choose; Bede (c. 730) adds the symbolic reading (six as counterfeit perfection); Beatus (c. 786) lists seven names at once. The "Lateinos = the Latin kingdom" line was re-pointed by the Reformers (Bullinger, the Geneva Bible) at the papacy; the now-dominant Nero Caesar identification is a nineteenth-century recovery (Fritzsche, Benary, Farrar, Stuart), accepted by Bauckham, Aune, and Koester; and the literal, futurist "mark" (barcode, microchip) is younger still. Whether 666 also dates the book is weighed under the date of Revelation.
fallen angels and their giant offspring vs. the line of Seth and merely mighty men. The angelic/Enochic reading is earliest — 1 Enoch (c. 300 BC), the Septuagint's "giants," then Justin, Athenagoras, and Tertullian — before the Sethite reading, first stated by Julius Africanus (c. 240), carried by Ephrem (c. 373) and Chrysostom (c. 407), and made standard by Augustine (c. 420), who dismissed the Enochic "fables." Revived in the modern supernatural reading of Heiser (c. 2015) and De Young.
the near-universal pre-modern reading of Genesis 6–9 as real history — figurative senses (ark = Church, Christ’s cross) layered on the event, not substituted for it. Traced from Theophilus (c. 185) and Origen (c. 248) through Basil, Ambrose, Chrysostom, and Jerome to Augustine (c. 420), who set the both/and rule; no named ancient writer denied the event, the first systematic denial coming only early-modern (Isaac La Peyrère’s local flood, 1655) — set against the modern questions its “literalist” slogan conflates: anthropological vs. geographic universality, and ancient historicity vs. 20th-c. flood-geology.
the fast-growing modern reading that the UFO / "alien" phenomenon is not extraterrestrial biology but spiritual deception — fallen angels, and (on the Enochic view) the disembodied spirits of the dead Nephilim, in a technological mask; the deceiving "gods" of the Fathers having changed costume from gods to fairies to "aliens." Rooted in the ante-Nicene demonology of Justin, Athenagoras, Eusebius, and Lactantius, and anticipated at mid-century by C. S. Lewis (1938–1958) — who imagined fallen angels masquerading as a superior intelligence yet insisted real, even unfallen, life elsewhere would be God's creature, not a demon — it is built in the modern era on the secular interdimensional thesis of Jacques Vallée (1969) and carried by Chuck Missler & Mark Eastman (1997), Gary Bates (2005), L. A. Marzulli and Tom Horn (2013), and the more careful Michael Heiser (2017) and Fr. Stephen De Young (2022) — set against Catholic astronomers (Funes, Consolmagno) open to real extraterrestrial life. Shares its key modern witnesses with the Nephilim timeline.
what tongue Adam spoke and what single language humanity shared before the confusion at Babel (Gen 11) — with three camps: Hebrew primacy (Hebrew the original speech, kept through Heber's line, whence "Hebrew"), Syriac/Aramaic primacy, and no divinely-given tongue (speech as human convention). The Hebrew-primacy reading runs from Josephus (c. 93) and the Pseudo-Clementine Recognitions through Eusebius and Jerome to Augustine (c. 420), who welds the etymology (Heber → "Hebrew") and the Babel account into the full thesis, and on to Isidore (c. 636) and Bede (c. 720) in the Latin West.
the external, non-biblical evidence adduced for Israel's entry into Canaan (Joshua) — Egyptian inscriptions and Levantine archaeology — with the proposed synchronisms weighed honestly. Four data points anchor the timeline, earliest first: the Soleb “Shasu of Yhw” inscription (~1400 BC), the Amarna Letters and their Habiru (~1350 BC), the Merneptah Stele’s “Israel” (~1208 BC), and the Iron I highland-settlement horizon (~1200 BC). The tightest correlations (Habiru = Hebrews, Shechem) rest on a contested early-date (~1400 BC) chronology that is not the mainstream position; the arguments adjudicate what the evidence does and does not establish.
the external, non-biblical evidence adduced for Sennacherib's 701 BC invasion of Judah and the siege of Jerusalem under Hezekiah (2 Kings 18–19; Isaiah 36–37; 2 Chronicles 32) — the Assyrian royal annals (the Taylor Prism and its siblings), the Lachish palace reliefs, Hezekiah's siege-preparation archaeology (the Siloam inscription, the LMLK jars), and later Greek and Hellenistic historians. The external record corroborates the frame of the story — the campaign, the 46 fortified cities, the siege and tribute, and (conspicuously) that the prism never claims Jerusalem was captured — but the deliverance miracle, the 185,000 dead, and the cause of the Assyrian withdrawal are attested by no external source; the arguments weigh what the evidence does and does not establish.
how Christians across history read the great and strange creatures of Scripture — leviathan and behemoth (Job 40–41), the dragon/tannin, the re'em the KJV called "unicorn," the fiery flying serpent — as literal animals, as allegory for the devil or sin, or as pagan legend to be sifted from fact, and the legends (dragon-slayings, sea-serpent and cryptid reports) that grew around them. Opens with the pagan natural-history tradition of the "flying serpent" (Herodotus, c. 440 BC; Ammianus Marcellinus, c. 390) and runs through the Fathers' allegory (dragon-as-devil) and literal-animal readings down to John of Damascus (c. 730), whose On Dragons and Ghosts reads the dragon as a real animal — a large serpent, not a shapeshifting apparition.
who the Twelve were, and how the church remembered them. The New Testament names the apostles in four lists (Matthew 10, Mark 3, Luke 6, Acts 1) that agree on the core Twelve but differ at the edges — “Thaddaeus” in Matthew and Mark stands where Luke and Acts have “Judas son of James,” and Simon is called both “the Cananaean” and “the Zealot”; after Judas Iscariot's fall the eleven chose Matthias to replace him, and the risen Christ later called Paul, “one born out of due time.” This overview introduces the group; from it, a timeline for each apostle traces — earliest source first — how the memory of his origin, mission field, and death grew across the centuries.
the fisherman of Bethsaida who stands first in every list of the Twelve, and whose life and death are the best-attested of any apostle. A timeline of the sources — from the New Testament's portrait of his origin, name, marriage, and leadership, through Clement of Rome, the apocryphal Acts, Tertullian, Gaius, Origen, Eusebius, and Jerome — tracing how the memory of his mission to Rome and his martyrdom under Nero took shape.
Simon Peter's elder brother, the fisherman of Bethsaida whom John's Gospel calls the “first-called” — and about whom the New Testament then falls silent. A timeline of the sources traces how the tradition of his mission grew: from Origen's bare notice of Scythia on the Black Sea, through the apocryphal Acts' story of his crucifixion at Patras and Jerome's mention of Achaia, to the Byzantine claim that he founded the church of Constantinople and the late-medieval saltire that became his cross.
James the Great — a Galilean fisherman, elder brother of John, and with Peter and John one of the inner three — is the one apostle whose death the New Testament records: Herod Agrippa I “killed James the brother of John with the sword” about the year 44, the first of the Twelve to be martyred. A timeline of the sources traces how the tradition grew from that firm anchor: Clement of Alexandria's early story of the accuser converted and beheaded beside him, then the late Latin apostle-lists' claim of a mission to Spain, and the medieval shrine of Santiago de Compostela.
the younger brother of James and, with Peter, one of the inner three — remembered as “the disciple whom Jesus loved,” entrusted with the mother of Jesus at the cross, the exile of Patmos, and the last of the Twelve to die, an old man at Ephesus. A timeline of the sources traces how the tradition grew — from the New Testament portrait, through Papias's tangled “two Johns” and George Hamartolus's report of an early martyrdom, Irenaeus and Clement and Polycrates on his old age at Ephesus, Tertullian's boiling oil and the apocryphal Acts' wonders, down to Jerome and the Golden Legend.
the disciple of Bethsaida who fetched Nathanael and voiced the question “Lord, shew us the Father” — and whose later tradition is tangled by a second man of the same name, Philip the deacon and evangelist of Acts, whose four prophesying daughters look like the daughters the Asian church remembered. A timeline of the sources traces how the memory grew: from the Gospels, through Papias and Polycrates placing Philip and his daughters at Hierapolis, to the apocryphal Acts' head-downward crucifixion and the martyrium excavated at Hierapolis in 2011.
the most shadowy of the Twelve — a name that is only a patronymic (“son of Tolmai”), listed beside Philip and never described, and traditionally identified with the Nathanael of John's Gospel. A timeline of the sources traces how a biography grew around the silence: from the Gospel lists, through Pantaenus's early report of a Hebrew Matthew left in “India,” to the apostle-lists that fixed Armenia and a martyr's death, and the Golden Legend's scene of the apostle flayed alive.
the apostle whom the Gospels let us hear speak — the loyal “let us also go, that we may die with him,” the puzzled “how can we know the way?” and the doubt that ends in “My Lord and my God” — and whose name, like “Didymus,” means “the Twin.” His is the best-developed missionary tradition after Peter and Paul. A timeline of the sources traces it: from the Gospels, through Origen's bare allotment of Parthia and the Acts of Thomas' romance of a palace built in heaven for a king (Gundaphar) whom coins have since proved real, to Ephrem and the Edessa relic-cult, the Kerala Saint Thomas Christians, and the Golden Legend.
the tax collector called from the toll-booth — the Levi of Mark and Luke, the church remembered — and the apostle credited from the second century with the first Gospel, “composed in the Hebrew tongue.” A timeline of the sources traces how his tradition grew: from the Gospel call-scene, through Papias on the Hebrew oracles and Clement's hint that Matthew was not martyred, to Jerome's Latin summary, the wandering mission-traditions, and the Golden Legend's tale of martyrdom in Ethiopia.
the most shadowy of the Twelve — a name and a father's name in every apostle-list, and nothing else. A timeline of the sources traces how his tradition was almost entirely borrowed: from the bare Gospel notices, through the apostle-lists that first grafted onto him the Jerusalem martyrdom of James the Just, to Jerome's fusion of the two Jameses and the Golden Legend's finished identification — which modern scholarship, distinguishing the three first-century Jameses, pulls apart again.
the apostle of many names — “Thaddaeus” (or “Lebbaeus”) in Matthew and Mark, “Judas of James” in Luke and Acts, “Judas, not Iscariot” in John — whom the church harmonized into one man and then identified with Jude the author of the Epistle. A timeline of the sources traces how the tradition grew around a near-total silence: from the tangle of names in the New Testament, through Eusebius and the apocryphal letters of King Abgar (whose healer he makes “one of the seventy,” not one of the Twelve), to Jerome’s harmonizing of the names, the apostle-lists and the Golden Legend’s martyrdom with Simon the Zealot in Persia, and the modern scholarship that pulls the names apart again.
the apostle Matthew and Mark call “the Cananaean” and Luke and Acts “the Zealot” — one Aramaic zeal-word in two languages, not “of Cana” — and about whom the New Testament says nothing else at all. A timeline of the sources traces how a mission and a martyrdom were supplied after the fact: from the bare Gospel epithet, through the mutually-dependent apostle-lists that scatter his labours across Persia, Britain, Egypt, and the Caucasus and even confuse him with Simeon of Jerusalem, to the Latin passion and the Golden Legend’s Persian martyrdom with Jude that gave Western art his saw.
the one apostle everyone remembers for a single act — the betrayal — and the only one whose death the New Testament records twice, in accounts that do not read alike. A timeline of the sources traces how the memory grew: from the New Testament’s double-ended record (the “man of Kerioth,” the thirty pieces, and the two deaths — Matthew’s hanging, Acts’ falling headlong), through Papias’s grislier swelling and the 2nd-century Gnostic Gospel of Judas that made the traitor a hero, to the medieval Oedipus-legend of the Golden Legend and Dante’s Satan-chewed Judas.
the one apostle added after the Ascension — chosen by lot to replace the fallen Judas, required to be an eyewitness “from the baptism of John” to the Ascension, and then never named again in the New Testament. A timeline of the sources traces how a life was supplied for a man known from a single verse: from the full Gospel account of his election, through the second-century Traditions of Matthias Clement quoted and the “Gospel of Matthias” Eusebius rejected, the cannibal-city romance that keeps confusing him with Matthew, and the late lists that carry him to Colchis and give him three incompatible deaths, to the relic-cult at Trier.
the apostle to the Gentiles, called last of all on the Damascus road — and the one apostle whose life the New Testament documents in full but whose death it never records, leaving Paul under house-arrest at Rome. A timeline of the sources traces the one great gap the tradition fills, what happened after Acts 28: from the New Testament’s Saul of Tarsus and his hoped-for mission to Spain, through Clement of Rome’s early word that Paul reached “the extreme limit of the west” and was martyred, the Acts of Paul’s famous portrait (“small in size, bald-headed, bandy-legged”) and Thecla romance, Tertullian, Eusebius, and Jerome on the beheading at Rome under Nero, to the tomb on the Ostian way.
a relationship told across time: how the youthful friendship of Jerome and Rufinus of Aquileia — fellow ascetics at Aquileia, both admirers of Origen — soured into one of the bitterest quarrels of the early Church once Origen's orthodoxy was called into question. A footnoted timeline of the dated events, letters, and documents of the friendship and its rupture, earliest first. This first phase covers the origins and the long friendship (c. 344–386), before Origen set them at odds.
a relationship told across time: how the letters between Augustine of Hippo and Jerome — the two greatest Latin churchmen of their age, who never met — began as a young bishop's prickly, mislaid criticism of the famous old scholar's exegesis and ended, a quarter-century later, as one of the warmest friendships of the early Church. A footnoted timeline of the letters that passed between them, earliest first, tracking their two great disputes (Paul's rebuke of Peter at Antioch; the Hebrew vs. the Septuagint) and the slow thaw from rivalry into reverence.