For students & lay readers

Cite & learn

Plain-language help for using this site in papers, classrooms, and curious browsing — how to cite our work, what the counts mean, and where to go next for full scholarly tools. For claim discipline and audience routes, see Use this site.

How to cite this site

Replace bracketed placeholders with your access date. Adjust the author line to match how you attribute the repository maintainer.

The website

Illustrative Manuscripts. (n.d.). Illustrative Manuscripts: An illustrated timeline of early biblical witnesses [Website]. GitHub Pages. https://severin12am.github.io/illustrative-manuscripts/ (Source code: https://github.com/severin12am/illustrative-manuscripts). Accessed [access day month year].

Chicago (short): Illustrative Manuscripts. Illustrative Manuscripts: An Illustrated Timeline of Early Biblical Witnesses. Accessed [date]. https://severin12am.github.io/illustrative-manuscripts/.

MLA (short): Illustrative Manuscripts: An Illustrated Timeline of Early Biblical Witnesses. GitHub Pages, severin12am.github.io/illustrative-manuscripts/. Accessed [date].

@misc{illustrative_manuscripts_site,
  title = {Illustrative Manuscripts: An illustrated timeline of early biblical witnesses},
  author = {{Illustrative Manuscripts}},
  year = {n.d.},
  howpublished = {Website},
  url = {https://severin12am.github.io/illustrative-manuscripts/},
  note = {Source code: https://github.com/severin12am/illustrative-manuscripts. CC BY 4.0 metadata; MIT code.}
}

The downloadable variant census (CSV / JSON)

Illustrative Manuscripts. (n.d.). Greek New Testament variant census (1400 CE vs SR GNT) [Data set]. GitHub. https://github.com/severin12am/illustrative-manuscripts/blob/main/public/variant-census.csv (JSON: https://github.com/severin12am/illustrative-manuscripts/blob/main/public/variant-census.json). 37,528 word-aligned variation units, 86 witnesses. Accessed [access day month year].

Direct downloads: variant-census.csv · variant-census.json

Chicago (short): Illustrative Manuscripts. Greek New Testament Variant Census (1400 CE vs SR GNT). GitHub, https://github.com/severin12am/illustrative-manuscripts/blob/main/public/variant-census.csv. Accessed [date].

@misc{illustrative_manuscripts_census,
  title = {Greek New Testament variant census (1--400 CE vs SR GNT)},
  author = {{Illustrative Manuscripts}},
  year = {n.d.},
  publisher = {GitHub},
  url = {https://github.com/severin12am/illustrative-manuscripts/blob/main/public/variant-census.json},
  note = {37,528 word-aligned variation units; 86 witnesses. Mechanical collation vs open SR GNT (CNTR); not NA28 apparatus.}
}

For researchers

Cite CNTR and INTF/NTVMR for primary Greek transcriptions and manuscript registers. Cite Illustrative Manuscripts when you use our illustrative census slice, coverage aggregates, or hand-curated passage cards — not as a stand-in for critical editions. For a one-page methods statement (windows, units, scripts), see Methods.

Public data files
public/variant-census.json and public/variant-census.csv — one row per counted variation unit (witness, verse, kind, readings vs SR GNT). src/data/coverage.json — build-time aggregates (totals, by book, by kind, intentional-tag summaries). src/data/witness-texts.json — diplomatic verse bundles for timeline cards (CNTR-derived). Schema notes in DATA.md.
What is not in the JSON
Full NA28/ECM apparatus, manuscripts outside our 1400 CE Greek NT window, copyrighted scan pixels, or proprietary translation text (NA28/NIV/ESV). Block-level famous passages live in src/data/famous-passages.json; claim discipline cards in src/data/claims-evidence.json.
Claim discipline
Before comparing our counts to tradition-scale estimates, read Use this site and Coverage & scope.

What the numbers mean

Greek NT counts on this site compare surviving letters in our CNTR witness slice to open SR GNT (Society of Biblical Literature Greek New Testament, from CNTR). Qurʾān and Nag Hammadi cards show catalogued witnesses but do not yet publish the same mechanical census. For regional rasm within the Uthmanic Text Type (~35–40 reports in published stemmatics), see Uthmanic regional rasm.

Witness
One physical manuscript — e.g. P52, Codex Vaticanus (03), a Hijazi Qurʾān leaf. Each card is a single witness, not the whole tradition.
Paleographic range
Scholars estimate when a hand was written from handwriting style (and sometimes radiocarbon). Cards show a range (e.g. 125–175 CE), not a single exact year.
Variation unit
One spot where a witness's extant letters disagree with SR GNT at the same aligned word position — for example, a different spelling at John 1:1. Our site counts word-aligned variation units in surviving text only.
Kinds (omission, addition, substitution, orthography, …)
Each unit is classified mechanically:
  • Orthography Spelling or pronunciation spelling only (itacism, movable nu, nomina sacra, diacritic/breathing-insensitive).
  • Omission SR GNT has word(s) the witness lacks in the aligned extant span.
  • Addition Witness has word(s) SR GNT lacks in the aligned extant span.
  • Substitution Different lexical content at the same aligned position (not explainable as orthography alone).
  • Transposition Same letters or word multiset in different order (cheap mechanical check only; may miss complex cases).
SR GNT comparison
SR GNT is an open critical Greek text from the Center for New Testament Restoration (CNTR). Comparing one witness to SR GNT shows where that copy differs from this reconstruction — not “the right reading” by itself, and not every manuscript ever copied.
Lacunae are not counted as variants
Fragments have holes. If software treated every gap as a deliberate omission, counts would explode. We only compare extant letters — lacunae ([...]) and editorially supplied reconstruction (~) are excluded. That keeps numbers smaller and more honest than naive string diffs.

How to read a card

On the timeline, each witness card stacks three layers of evidence for the passage we show:

  1. Photograph — when we have a legal Commons plate or an institutional IIIF embed; otherwise an outbound link to the holding library. We do not rehost restricted scans.
  2. Diplomatic text — what survives on the leaf in the original script (Greek uncial, Arabic rasm, Coptic, or Hebrew consonants), with lacunae marked honestly.
  3. English of these lines — a public-domain translation for the same verses (WEB for Greek NT, Pickthall 1930 for Qurʾān, etc.), plus variant strips under Greek NT verses where the witness disagrees with SR GNT.

The header line gives the Gregory–Aland or catalog siglum, paleographic date range, and a short variant summary for Greek NT witnesses with CNTR data.

How to use Compare and Variants

  1. Open the variant explorer to browse 37,592 counted disagreements vs SR GNT. Filter by kind (omission, orthography, …), witness, or book.
  2. Click a row to expand witness vs SR readings for that unit; use the search box for verse references or Greek snippets.
  3. Open witness compare, pick two Greek NT witnesses (e.g. P75 vs 03), choose a book overlap, and run the comparison. Toggle the SR GNT column and “disagreements only” as needed.
  4. Follow preset pairs (P66 vs P75 in John, etc.) or URL parameters ?a=P75&b=03&book=Luke to share a view.
  5. Download the open census from Coverage or the citation block above for spreadsheet or research workflows — always note our scope limits when you publish.

What we are not claiming

Scholarly sources we reuse

We compile metadata and transcriptions from open catalogs; institutional image rights stay with holding libraries unless a Commons or IIIF license explicitly allows reuse.

SourceWhat we use it forLicense / terms
CNTRGreek diplomatic transcriptions, SR GNT, variant collationCC BY-SA 4.0
INTF Liste / NTVMRGregory–Aland sigla, date ranges, outbound manuscript linksCite INTF; images link-only
IGNTPCritical editions and tools for full NT textual workPer edition / site terms
Gurry 2016Context for Ehrman-scale estimates (~500k readings)NTS article; open accepted MS at Cambridge
Corpus CoranicumQurʾān witness catalog spine and bibliographyCC BY 4.0 metadata
Claremont NHANag Hammadi codex IIIF embedsIIIF embed only; physical rights retained
Wikimedia Commons / IIIFHosted leaf photos where PD/CC licenses allowPer-file license (see .attribution.json sidecars)

Site metadata compilation: CC BY 4.0. Code: MIT. Details in DATA.md.

Further reading

Accessible starting points — popular introductions alongside standard reference works and open tools.

  1. Bart D. Ehrman, Misquoting Jesus: The Story Behind Who Changed the Bible and Why (San Francisco: HarperSanFrancisco, 2005) — popular framing of NT textual variation (read alongside critical reviews and our Coverage limits).
  2. Bruce M. Metzger & Bart D. Ehrman, The Text of the New Testament: Its Transmission, Corruption, and Restoration (4th ed.; Oxford: Oxford University Press, 2005) — standard handbook introduction to textual criticism.
  3. Peter J. Gurry, “How Many Variants Are in the Greek New Testament?” Journal of Theological Studies 67, no. 2 (2016): 657–664 — doi:10.1017/S0028688516000216.
  4. Institute for New Testament Textual Research — INTF overview and NTVMR for manuscript registers and images.
  5. Center for New Testament Restoration — greekcntr.org for open transcriptions and SR GNT.
  6. Tommy Wasserman & Peter J. Gurry, eds., Myths and Mistakes in New Testament Textual Criticism (Downers Grove, IL: IVP Academic, 2019) — clears common public misunderstandings about counts and methods.
  7. Peter J. Williams, Can We Trust the Gospels? (Wheaton, IL: Crossway, 2018) — short, lay-friendly introduction to Gospel manuscript evidence and common misconceptions.
  8. Corpus Coranicum — corpuscoranicum.org for early Qurʾān manuscript cataloguing and bibliography. Our Uthmanic regional rasm page summarizes Cook / Sidky stemmatics with curated examples.