The Infinite ArchiveTHE INFINITE ARCHIVEHISTORY · SCIENCE · MYSTERY
Pages from a copy of the Rohonc Codex
Pages from a copy of the Rohonc Codex. Image: Klaus.Schmeh · CC0 · via Wikimedia Commons
Unexplained mysteries · Central Europe · likely 16th–17th century

The Rohonc Codex

Unresolved1500 CE – 1700 CELibrary of the Hungarian Academy of Sciences, Budapest

Nearly 450 pages in an unknown script, with illustrations of crosses, crescents and suns.

Research draft · editor review pending. Every claim below is linked to a checked source, but this dossier has not yet been reviewed by a human editor. Spot an error? Corrections are logged.

The Rohonc Codex is a small paper manuscript of about 450 pages written in an unknown script of around 200 different signs, with 87 illustrations that include Christian, pagan and Islamic imagery. It surfaced in the 19th century in the library of a Hungarian nobleman and is now kept in Budapest.

Loading the full dossier…

Connected dossiers

The Voynich ManuscriptSame open question · Another illustrated manuscript in an unknown script.The Phaistos DiscSame open question · Another unique undeciphered text.

See The Rohonc Codex in the discovery universe →

Ask the archive

Have a question about this dossier, or think a claim needs a better source? Send it to the editors.

Questions go to the editors and are not published automatically. Please do not include personal information.

How to read the labels

EstablishedSupported by strong, converging evidence.
ContestedEvidence exists but qualified scholars disagree.
UnresolvedThe question is open; evidence does not settle it.
LegendComes from myth, literature or tradition, not physical evidence.
SpeculativeA hypothesis with little direct evidence so far.

Hero image: Pages from a copy of the Rohonc Codex. Image: Klaus.Schmeh · CC0 · via Wikimedia Commons. Evidence labels describe the written claims, not the image. Version 1 · updated 2026-10-22.