The Bible wasn't handed down complete. It was assembled over four centuries by specific people making specific decisions, some theological, some political, some as blunt as "which texts does everyone already agree on." This is the actual timeline, what got left out along the way, and a few translation choices that changed what the text says.
Paul's authentic letters, Romans, 1 Corinthians, Galatians, and others, are the earliest Christian writings that survive, written years before any Gospel. The Jesus movement existed for a generation as letters and oral tradition, not a book.
Mark is generally dated first, around 70 CE, near the fall of the Jerusalem Temple. Matthew and Luke follow around 80–90 CE, both drawing on Mark and a hypothesized shared sayings-source scholars call Q. John comes last, around 90–100 CE, with noticeably different theology and chronology from the other three.
Dozens of gospels, acts, and revelations circulate among different Christian communities, including the Gospel of Thomas, the Gospel of Peter, and the Infancy Gospel of Thomas. There is no single authoritative New Testament yet, just a patchwork of texts read in different regions.
Marcion of Sinope proposes the first fixed Christian canon: an edited Gospel of Luke and ten Pauline letters, and nothing else, rejecting the entire Hebrew Bible as the work of a lesser god. The wider church declares him a heretic, but his hard line pushes everyone else to start defining their own.
The earliest surviving list that resembles the eventual New Testament, naming most of the familiar books while explicitly flagging others as disputed, the Apocalypse of Peter among them, with the note that "some do not want it read in church."
Irenaeus of Lyon insists there must be exactly four gospels, no more and no fewer, reasoning from the four corners of the earth and the four winds. A theological argument, not a historical or evidentiary one.
Despite what circulates online, the Council of Nicaea did not vote on which books belong in the Bible. It was convened to settle the Arian controversy, the argument over whether Christ was of the same substance as God the Father, and produced the Nicene Creed. Canon formation was never on its agenda.
In his Easter letter, Bishop Athanasius of Alexandria becomes the first person on record to list exactly the 27 books that make up today's New Testament, and only those 27, nothing more and nothing less.
The Councils of Hippo and Carthage, regional North African church councils, formally endorse Athanasius's list for the Western church, though it takes centuries more before it's treated as fully settled everywhere.
In direct response to the Protestant Reformation, the Catholic Council of Trent formally dogmatizes its Old Testament canon, including the deuterocanonical books, Tobit, Judith, Wisdom, Sirach, Baruch, 1 and 2 Maccabees, that Protestant Bibles leave out.
Martin Luther moves those same deuterocanonical books into a separate Apocrypha section, useful for reading but not authoritative for doctrine, and privately doubted James, Hebrews, Jude, and Revelation, though he kept all 27 New Testament books in his translation.
A "sayings gospel," 114 numbered lines attributed to Jesus with no narrative, no crucifixion, no resurrection. Associated with early Christian mysticism.
Rediscovered in the 20th century. Portrays Judas not as a betrayer but as the one disciple who truly understood Jesus, acting at his request.
Centers Mary Magdalene as a leading disciple and visionary, in open tension with the other apostles over her authority to teach.
Stories of a child Jesus performing miracles, some startling and violent. Popular reading, never seriously considered for the canon.
Widely read and even bound into some early manuscript collections, including Codex Sinaiticus, but ultimately left out of the final list.
An early church training manual on ethics and ritual, influential enough that it came close to inclusion in some regional canons.
The Hebrew word almah means "young woman," with no necessary implication of virginity, that's a separate Hebrew word, betulah. The Greek Septuagint translates almah as parthenos, "virgin," and Matthew's Gospel cites that Greek version, not the Hebrew, to frame Jesus's birth as a fulfillment of prophecy.
The Masoretic Hebrew text reads "like a lion, my hands and feet," while the Dead Sea Scrolls and the Greek Septuagint preserve a different reading, "they pierced my hands and feet." Which version is original has been debated for centuries, and the pierced reading became central to later crucifixion-as-prophecy arguments.
English Bibles translate at least four distinct underlying words, Sheol, Hades, Gehenna, and Tartarus, as a single word, hell. Each had its own separate meaning in its original context. Flattening them into one English term erases centuries of theological development, and is its own chart on this site.