Research
Evidence Library
Evidence is not a pile of facts to be counted. Each item below is graded for how much weight the scholarly literature actually places on it, explained at length, and paired with an explicit statement of what it does not establish. Learning the limits is what makes the strong items usable.
History
Strong consensusThe crucifixion of Jesus
Jesus of Nazareth was executed by Roman crucifixion under Pontius Pilate, around AD 30–33.
Manuscripts
Majority viewNew Testament manuscript transmission
The New Testament text is exceptionally well attested by ancient standards, and its variants are overwhelmingly trivial.
History
Majority viewThe empty tomb tradition
The tomb of Jesus was found empty on the first day of the week.
Cosmology
ContestedFine-tuning of physical constants
Several constants and initial conditions of physics fall within narrow ranges compatible with complex life.
History
Strong consensusThe conversion of Paul
A committed persecutor of the early church became one of its principal missionaries after claiming an appearance of the risen Jesus.
History
Majority viewThe Burial Tradition of Joseph of Arimathea
All four canonical gospels report that a member of the Jewish council named Joseph of Arimathea requested Jesus's body from Pilate and buried it, a detail widely regarded by historians as difficult to have been invented.
History
Majority viewWillingness of Early Christians to Suffer and Die for Their Testimony
Several early sources report that Christians, including apostolic figures, faced persecution, imprisonment, and execution rather than recant their claims, a pattern historians use as evidence about the sincerity, though not the truth, of their beliefs.
History
Majority viewThe Pre-Pauline Tradition in 1 Corinthians 15:3-7
Paul introduces a summary of the resurrection message using technical language of receiving and handing on tradition, which most scholars, across a wide theological spectrum, date to within a few years of the crucifixion.
History
Strong consensusRoman Sources on Jesus and Early Christians: Tacitus and Pliny
Non-Christian Roman writers Tacitus and Pliny the Younger provide independent, early external references to Jesus's execution under Pontius Pilate and to the practices of Christian communities in the early second century.
History
Strong consensusJosephus on James the Brother of Jesus and John the Baptist
The Jewish historian Flavius Josephus, writing around 93-94 CE, independently references James, described as the brother of Jesus called Christ, and separately gives an extended account of John the Baptist, both widely regarded as authentic apart from a disputed shorter passage about Jesus himself.
Manuscripts
Majority viewP52 and the Earliest New Testament Papyri
P52, a small papyrus fragment of John's gospel usually dated to the first half of the second century, is among the earliest surviving New Testament manuscript witnesses and is often cited to argue for a relatively short gap between composition and surviving copies.
Manuscripts
Majority viewPatristic Quotation of the New Testament
Early Christian writers from the late first through third centuries quote or allude to New Testament passages so extensively that scholars have argued nearly the entire New Testament text could be reconstructed from patristic citations alone, independent of surviving manuscript copies.
Manuscripts
Strong consensusCodex Sinaiticus and Codex Vaticanus
These two fourth-century parchment codices are the earliest surviving nearly complete manuscripts of the Greek Bible and form the backbone of the Alexandrian textual tradition used in most modern critical editions of the New Testament.
Manuscripts
Majority viewEarly Versional Evidence: Old Latin, Syriac, and Coptic
Translations of the New Testament into Latin, Syriac, and Coptic beginning in the second and third centuries provide geographically independent lines of textual transmission that help critics cross-check the Greek manuscript tradition.
Manuscripts
Strong consensusThe Disputed Longer Ending of Mark and the Pericope of the Adulteress
Two of the most discussed textual variants in the New Testament are Mark 16:9-20 and John 7:53-8:11, both widely regarded by textual critics as later additions absent from the earliest and best manuscripts, illustrating how textual criticism identifies secondary material.
Archaeology
Strong consensusThe Pilate Inscription at Caesarea Maritima
A limestone inscription discovered in 1961 at the Roman theater in Caesarea Maritima names Pontius Pilate as prefect of Judea, providing the first archaeological confirmation of his historical existence and official title outside literary sources.
Archaeology
Majority viewThe Caiaphas Ossuary
A limestone bone box discovered in 1990 in a Jerusalem burial cave bears an inscription generally read as 'Joseph, son of Caiaphas,' widely though not universally identified with the high priest Caiaphas named in the gospels and Josephus.
Archaeology
Majority viewThe Pool of Siloam
A monumental stepped pool from the Second Temple period, uncovered in Jerusalem in 2004, is widely identified by archaeologists with the Pool of Siloam mentioned in John 9 as the site where Jesus healed a blind man.
Archaeology
Strong consensusFirst-Century Nazareth and Capernaum
Archaeological excavation has established that both Nazareth and Capernaum were small, genuinely inhabited Jewish villages in the first century CE, countering earlier fringe claims that Nazareth in particular did not exist at the time.
Archaeology
Strong consensusThe Yehohanan Crucified Heel Bone
A first-century skeletal find from a Jerusalem tomb, including a heel bone pierced by an iron nail, provides the only direct physical evidence of Roman crucifixion practice from the region and period in which Jesus was executed.
Archaeology
Strong consensusThe Tel Dan Stele
A basalt inscription fragment discovered in 1993 at Tel Dan in northern Israel contains the phrase 'House of David,' providing the earliest known extra-biblical reference to David and reshaping debate over his historicity as a political figure.
Archaeology
Strong consensusHezekiah's Tunnel and Sennacherib's Prism
An engineered water tunnel beneath Jerusalem bearing a contemporary inscription, together with an Assyrian royal inscription describing a siege of Jerusalem, together corroborate the biblical account of King Hezekiah's preparations against Assyrian invasion in 2 Kings 20 and Isaiah 22.
Cosmology
Strong consensusCosmic Expansion and the Cosmic Microwave Background
Observations of galactic redshift and the cosmic microwave background radiation are the primary empirical basis for the standard Big Bang model, indicating the universe originated from an extremely hot, dense early state roughly 13.8 billion years ago.
Cosmology
Strong consensusThe Cosmological Constant and Accelerating Expansion
Observations of distant Type Ia supernovae in the late 1990s revealed that cosmic expansion is accelerating, attributed to a form of dark energy modeled mathematically as a cosmological constant, whose value poses one of the most severe unsolved problems in theoretical physics.
Cosmology
ContestedThe Borde-Guth-Vilenkin Theorem and Its Limits
A 2003 theorem by Arvind Borde, Alan Guth, and Alexander Vilenkin shows that any universe which has, on average, been expanding throughout its history cannot be past-eternal and must have a past boundary, a result frequently invoked in debates about cosmic beginnings but subject to important technical qualifications.
Cosmology
ContestedLow-Entropy Initial Conditions and the Arrow of Time
The very low entropy (high order) of the early universe, required to explain the thermodynamic arrow of time we observe, is considered by several physicists to be an extraordinarily improbable initial condition demanding further explanation.
Cosmology
Minority viewMultiverse Proposals and the Measure Problem
Several cosmological and string-theoretic models predict the existence of a vast or infinite ensemble of separate universes or regions with differing physical constants, a proposal that remains empirically untested and faces a significant unresolved technical difficulty called the measure problem.
Philosophy
ContestedThe Hard Problem of Consciousness
Philosopher David Chalmers's distinction between the 'easy' problems of explaining cognitive functions and the 'hard problem' of explaining subjective experience itself remains a central unresolved issue in philosophy of mind, with no consensus physicalist explanation currently available.
Philosophy
ContestedThe Applicability of Mathematics to Physical Reality
The remarkable success of abstract mathematics, often developed with no physical application in mind, in accurately describing and predicting physical phenomena has been described by physicist Eugene Wigner as 'unreasonable' and remains a subject of ongoing philosophical discussion.
Philosophy
ContestedMoral Intuition as Evidence in Ethics
Many moral philosophers treat strong, widely shared moral intuitions, such as that gratuitous cruelty is wrong, as a legitimate starting point for ethical theorizing, a methodology that is itself philosophically contested regarding its reliability and justificatory force.
Philosophy
ContestedThe Principle of Sufficient Reason
The claim that every fact or existing thing must have an explanation or sufficient reason for its existence, historically associated with Leibniz, underlies several cosmological arguments but is itself a contested metaphysical premise rejected by a significant number of contemporary philosophers.
History
ContestedThallus, Phlegon, and the Darkness Reports
Second- and third-century Christian writers cite now-lost first- and second-century historians, Thallus and Phlegon, as having addressed or attempted to explain a period of darkness associated with the crucifixion, indicating that non-Christian writers engaged with the tradition early on.
History
ContestedSuetonius on 'Chrestus' and the Expulsion of Jews from Rome
The Roman biographer Suetonius, writing around AD 121, records that the emperor Claudius expelled Jews from Rome because they were rioting 'at the instigation of Chrestus,' a passage many scholars connect to disputes over Jesus among Roman Jews around AD 49.
History
Minority viewThe Nazareth Inscription on Tomb Violation
A Greek inscription attributed to an unnamed Caesar, discovered in Nazareth and generally dated to the first century, decrees the death penalty for disturbing sealed tombs, a measure some scholars connect to imperial concern about resurrection claims spreading from Judea.
History
ContestedIncidental Detail and Eyewitness Markers in Mark's Gospel
The Gospel of Mark contains numerous incidental, seemingly pointless topographical, personal, and circumstantial details that some scholars argue are best explained by dependence on eyewitness memory rather than free literary invention.
Manuscripts
Majority viewTatian's Diatessaron as Evidence for Second-Century Gospel Use
Around AD 170, the Christian writer Tatian composed the Diatessaron, a single continuous narrative harmonizing all four canonical gospels, indicating that by this date the four gospels, and essentially only these four, held recognized authoritative status in at least some Christian circles.
Manuscripts
ContestedThe Muratorian Fragment as an Early Canon List
The Muratorian Fragment, a damaged Latin manuscript generally dated by most scholars to the late second century, provides one of the earliest surviving lists of New Testament books regarded as authoritative, along with explicit discussion of books excluded from that list.
Manuscripts
Majority viewThe Chester Beatty Biblical Papyri
The Chester Beatty Papyri, a collection of early Greek biblical manuscripts acquired in the 1930s and generally dated between the late second and fourth centuries, include some of the earliest substantial manuscript witnesses to large portions of the New Testament and Septuagint.
Manuscripts
Majority viewDead Sea Scrolls and the Reliability of Old Testament Transmission
The Dead Sea Scrolls, discovered beginning in 1947 and including biblical manuscripts dated as early as the third century BC, demonstrate that the Hebrew text of many Old Testament books was transmitted with substantial, though not total, stability across roughly a millennium compared to the medieval Masoretic Text.
Manuscripts
Majority viewCodex Alexandrinus and the Wider Uncial Tradition
Codex Alexandrinus, a fifth-century Greek biblical manuscript, alongside the broader corpus of early uncial codices, provides an important independent check on the readings preserved in Sinaiticus and Vaticanus, illustrating the value of a wide, geographically diverse manuscript base for textual criticism.
Archaeology
Strong consensusThe Gallio Inscription and the Dating of Paul's Corinthian Ministry
An inscription discovered at Delphi recording the proconsulship of Lucius Junius Gallio, generally dated to AD 51-52, allows historians to anchor the chronology of Paul's ministry in Corinth, described in Acts 18, to a specific, independently verifiable date.
Archaeology
ContestedThe Erastus Inscription at Corinth
A Latin inscription found near the theater at Corinth names an Erastus who paid for pavement in exchange for holding the office of aedile, a name and civic role some scholars connect to the Erastus mentioned as city treasurer of Corinth in Romans 16:23.
Archaeology
Strong consensusThe Magdala Synagogue and First-Century Galilean Judaism
Excavations at Magdala on the Sea of Galilee, beginning in 2009, uncovered a first-century synagogue, including a carved stone bearing early menorah and Temple imagery, providing rare direct archaeological evidence of Galilean Jewish religious life contemporary with Jesus's ministry.
Archaeology
Strong consensusThe Arch of Titus and the Destruction of the Jerusalem Temple
The Arch of Titus in Rome, dedicated around AD 81, depicts Roman soldiers carrying spoils from the Jerusalem Temple, including a menorah, corroborating Josephus's detailed account of the Temple's destruction in AD 70 and providing an independent visual record of the event.
Archaeology
ContestedThe 'James Ossuary' and the Limits of Unprovenanced Artifacts
A first-century Jewish ossuary bearing the Aramaic inscription 'James, son of Joseph, brother of Jesus,' publicized in 2002, illustrates both the potential significance and the serious evidentiary limitations of archaeological artifacts lacking secure excavation context.
Cosmology
Strong consensusPlanck Satellite Data and Precision Measurement of Cosmic Parameters
Data from the European Space Agency's Planck satellite mission, published in successive releases between 2013 and 2018, provided high-precision measurements of the cosmic microwave background that strongly confirm the universe had a definite beginning in time and constrain its fundamental parameters to remarkable precision.
Cosmology
Minority viewRoger Penrose's Cyclic Cosmology and the Debate over a Beginningless Universe
Physicist and Nobel laureate Roger Penrose has proposed Conformal Cyclic Cosmology, a model in which the universe undergoes an endless sequence of expansion 'aeons,' representing one of several serious theoretical attempts to construct a scientifically motivated model of a universe without an absolute beginning, illustrating that the 'universe began to exist' premise remains a matter of live theoretical debate rather than settled consensus.
Cosmology
Contested'Universe from Nothing' Proposals and the Meaning of Quantum 'Nothing'
Proposals by physicists such as Lawrence Krauss that the universe could have arisen from a quantum vacuum 'without violating the conservation of energy' have been widely criticized by philosophers and some physicists on the grounds that a quantum vacuum, as physics describes it, is a physically structured state governed by pre-existing laws, and is therefore not equivalent to metaphysical nothingness.
Philosophy
ContestedThe Leibnizian Argument from Contingency
Gottfried Wilhelm Leibniz's argument from contingency holds that because the universe, taken as a whole, is a contingent reality whose existence is not self-explanatory, its existence requires an explanation in a necessarily existing being, distinct from the universe, whose non-existence is impossible.
Philosophy
ContestedPlantinga's Modal Ontological Argument
Alvin Plantinga's modal version of the ontological argument, developed in the 1970s using the framework of possible-worlds semantics, argues that if it is even possible that a maximally great being exists, then such a being exists in the actual world, since maximal greatness, if instantiated in any possible world, must be instantiated in every possible world, including this one.
Philosophy
ContestedRoger Penrose's Argument from the Universe's Extraordinarily Low Initial Entropy
Roger Penrose has calculated that the entropy of the universe's initial state was extraordinarily low, corresponding, by his estimate, to a probability of roughly one part in ten to the power of ten to the power of 123, a figure some philosophers and scientists argue constitutes evidence requiring explanation beyond chance under a purely naturalistic framework, though the significance of this fact is itself contested.
Philosophy
Minority viewGödel's Incompleteness Theorems and Their (Contested) Theological Applications
Kurt Gödel's incompleteness theorems, proven in 1931, demonstrate inherent limitations in what any sufficiently powerful formal axiomatic system can prove about itself, a result some apologists and philosophers have controversially invoked in arguments against strong forms of naturalism or against the sufficiency of purely mechanistic accounts of the human mind, applications most specialists in mathematical logic regard as significantly overstated.