From Scroll to Codex: How Early Christians Reinvented the Book

Walk into a library in the second-century Roman world and you would find shelves of scrolls — long rolls of papyrus that a reader unwound with one hand and rewound with the other. Yet the earliest surviving copies of the New Testament look startlingly different. They are books: stacks of leaves folded and bound down one edge, written on both sides, turned page by page. This shift from scroll to codex is one of the quiet revolutions in the history of the book, and early Christians were at the center of it. This article traces how and why the change happened, and why it still matters for anyone reading a Bible today.

The World of the Scroll

For centuries, the standard vehicle for literature across the Greek and Roman world was the roll, or bookroll. A work of Homer, a treatise by Cicero, or a play by Euripides would be copied in columns along a sheet of papyrus that could run many feet in length. Text was written on one side only, the reader scrolled horizontally through the columns, and a long work often required several rolls. The scroll was elegant and familiar — and, for elite Greco-Roman readers, it carried real cultural prestige. Serious literature belonged on a roll.

The codex, by contrast, started life as something humble. Romans used small bound tablets and stacked-leaf notebooks for jottings, accounts, and school exercises — the ancient equivalent of a legal pad. It was not where you expected to find a masterpiece. That makes what the early Christians did with it all the more distinctive.

A Striking and Distinctive Pattern

When scholars catalog the earliest surviving Christian manuscripts, a remarkable pattern emerges. While the surrounding literary culture kept using scrolls well into the third and fourth centuries, Christian copies of scripture appear overwhelmingly — nearly exclusively — as codices from very early on. The scholar Larry Hurtado, who studied this data closely, emphasized that the preference is far too lopsided to be an accident of survival. In the wider world the codex only gradually overtook the roll; among Christians copying their sacred texts, the codex was the default almost from the start.

This is why the question why did Christians use the codex has drawn so much scholarly attention. The early Christian codex was not just a format choice; it was, in a sense, a cultural signature.

The Practical Advantages

Several real advantages of the codex over the scroll are widely recognized, even if scholars debate which ones actually drove the shift:

• Economy. A codex is written on both sides of each leaf, roughly halving the papyrus (or parchment) needed for the same amount of text — a meaningful saving for a movement without deep pockets.
• Capacity. Because it stacks many leaves, a single codex could hold far more than one roll. All four Gospels, or the collected letters of Paul, could travel together in one volume rather than a bundle of separate scrolls.
• Random access. Finding a specific passage in a codex means turning to a page rather than unwinding yards of roll. For a community that read scripture aloud, cross-referenced texts, and argued from them, quick access mattered.
• Portability. A compact, bound book was easier to carry, store, and consult than an armful of rolls — useful for missionaries, teachers, and traveling congregations.

The Earliest Papyri Are Codices

The physical evidence is concrete. The oldest substantial New Testament manuscripts we possess were made as books, not rolls. Papyrus 46, one of the earliest known collections of Paul's letters, is a single-quire papyrus codex gathering many of the epistles into one volume; it is usually dated to around AD 200, though proposed dates range somewhat earlier and later. Papyrus 66, a near-complete copy of the Gospel of John, is likewise a codex conventionally dated to about AD 200, with the precise date still debated among specialists. These are not later, evolved forms of Christian book production — they are among the earliest witnesses we have, and they already assume the codex as the natural shape of scripture.

The Debated Reasons

Why Christians embraced the codex so decisively remains genuinely unsettled. A number of explanations have been proposed, and it is worth being measured about all of them:

• Some suggest an influential early collection — perhaps of Paul's letters or of the Gospels — was issued as a codex and set a precedent others followed.
• Some point to the practical benefits above as sufficient on their own.
• Some speculate about a link to note-taking practices, or to a desire to visibly distinguish Christian books from Jewish scrolls of the Hebrew scriptures.

None of these has won universal agreement, and the honest answer is that we do not know for certain. What is not in doubt is the outcome: the format early Christians favored eventually became the format of virtually every book in the Western world. When you hold a modern Bible — or any bound book — you are holding the descendant of that early decision. To see how these texts read across centuries and versions, explore the Translations hub.

Frequently Asked Questions

What is the difference between a scroll and a codex? A scroll is a continuous roll of papyrus or parchment, written in columns and read by unwinding it; a codex is made of leaves stacked and bound along one edge, written on both sides and turned page by page, like a modern book.

Did early Christians invent the codex? No. The codex form already existed in the Roman world, mostly for notebooks and everyday records. Christians did not invent it, but they adopted it for literary and sacred texts far earlier and more consistently than anyone else, helping drive its eventual dominance.

Are the oldest New Testament manuscripts scrolls or codices? The earliest substantial New Testament manuscripts are codices. Examples such as Papyrus 46 and Papyrus 66, both usually dated to around AD 200, were produced as bound books rather than rolls.

Why did Christians prefer the codex? Scholars point to practical advantages — lower cost, greater capacity, easier random access, and portability — but there is no consensus on which reason, or combination, was decisive. The strong preference is clear from the evidence even though its cause remains debated.