Disputed Statements

Vimshottari Dasha, Disciplines

Standing Scholarly debate

Concerns Origin Period Start Year

Currently States -200

The system is attributed to the sage Parashara in the Brihat Parashara Hora Shastra, but scholars date the text's actual compilation anywhere from around 200 before the common era to as late as the eighth century of the common era, with some passages considered older than the text's final compiled form. No single date is agreed, and the system may predate the text that first codifies it.

Source Brihat Parashara Hora Shastra, Sage Parashara (attributed) tier 1

Vimshottari Dasha, Disciplines

Standing Scholarly debate

Concerns Origin Period End Year

Currently States 800

The system is attributed to the sage Parashara in the Brihat Parashara Hora Shastra, but scholars date the text's actual compilation anywhere from around 200 before the common era to as late as the eighth century of the common era, with some passages considered older than the text's final compiled form. No single date is agreed, and the system may predate the text that first codifies it.

Source Brihat Parashara Hora Shastra, Sage Parashara (attributed) tier 1

Violet, Colors

Standing Scholarly debate

Concerns Origin Period Start Year

Currently States 1666

According To Newtonian optics: the seven-colour spectrum

Isaac Newton's own account in Opticks (London, 1704) describes how he arrived at seven spectral colours: his earliest prism observations distinguished five bands, and he settled on seven, adding orange and indigo, by explicit analogy with the seven intervals of the musical octave, a numerological choice rather than a further optical finding. Reading Newton's own text against the continuous gradient a prism actually produces shows the seven-fold division is an interpretive choice about where to draw lines in that continuum, not a count nature supplies; observers from Newton's own time onward have disputed whether indigo is visually distinct from blue and violet at all. Any scheme in this atlas that treats seven colours as given inherits Newton's seventeenth-century analogy to the octave rather than an independent observation.

Source Opticks: or, a Treatise of the Reflexions, Refractions, Inflexions and Colours of Light, Isaac Newton tier 1

Violet, Colors

Standing Scholarly debate

Concerns Origin Period End Year

Currently States 1704

According To Newtonian optics: the seven-colour spectrum

Isaac Newton's own account in Opticks (London, 1704) describes how he arrived at seven spectral colours: his earliest prism observations distinguished five bands, and he settled on seven, adding orange and indigo, by explicit analogy with the seven intervals of the musical octave, a numerological choice rather than a further optical finding. Reading Newton's own text against the continuous gradient a prism actually produces shows the seven-fold division is an interpretive choice about where to draw lines in that continuum, not a count nature supplies; observers from Newton's own time onward have disputed whether indigo is visually distinct from blue and violet at all. Any scheme in this atlas that treats seven colours as given inherits Newton's seventeenth-century analogy to the octave rather than an independent observation.

Source Opticks: or, a Treatise of the Reflexions, Refractions, Inflexions and Colours of Light, Isaac Newton tier 1

Vira Nirvana Samvat, Calendars

Standing Scholarly debate

Concerns Point in Dispute

Currently States Jain tradition fixes the epoch at 527 BCE. Comparative dating against the more securely attested life of the Buddha leads most modern historians to place Mahavira's death closer to 425 BCE, roughly a century later than the traditional count. Jain devotional and calendrical practice has not adopted the revised date.

Source The Jains, Paul Dundas tier 1

Vira Nirvana Samvat, Calendars

Standing Scholarly debate

Concerns Origin Period

Currently States The Vira Nirvana Samvat counts from the traditional date of Mahavira's nirvana, liberation from the body, which Jain tradition places at 527 BCE.

Jain tradition itself is unanimous on the 527 BCE date and the era is still used that way in Jain almanacs and inscriptions. Historians of early Jainism hold a different camp: comparative work with Buddhist chronology and the more securely dated Mauryan and Nanda king lists places Mahavira's death roughly a century later, in the early fourth century BCE, treating the traditional 527 BCE figure as a later retrospective calculation rather than a contemporary record. Both accounts are recorded here because they answer different questions, what the tradition itself counts from, and what the surviving evidence supports.

Source The Jains, Paul Dundas tier 1

Viracocha, Deities

Standing Scholarly debate

Concerns Associated Relic

Currently States The central figure carved on the Gateway of the Sun at the pre-Inca site of Tiwanaku has been identified by some archaeologists and art historians with Viracocha, based on later Inca-era traditions that read the ancient monument through their own creator god. Whether the Tiwanaku culture that carved the gateway centuries before the Inca actually understood the figure as a Viracocha-like creator deity, or whether that identification is a retrospective layer applied by the later Inca and by modern scholars reading Inca cosmology backward onto an earlier and culturally distinct society, is genuinely disputed in Andean archaeology; no inscriptional or contemporary textual evidence from Tiwanaku itself confirms the figure's identity.

Source At the Crossroads of the Earth and the Sky: An Andean Cosmology, Gary Urton tier 1

Virtus, Virtues

Standing Scholarly debate

Concerns Origin Period

Currently States A martial and civic value through the Roman Republic, formally inscribed first among the four virtues on Augustus's shield in 27 BCE; its origin as an early Republican military value is not precisely dateable.

Source Festivals and Ceremonies of the Roman Republic, H. H. Scullard tier 1

Virya (Diligence), Virtues

Standing Scholarly debate

Concerns Origin Period

Currently States The six-paramita scheme develops within early Mahayana Prajnaparamita literature, roughly the first centuries BCE and CE. Virya's qualification across commentarial literature as energy joined with joy rather than raw exertion is treated at length in Santideva's eighth century Bodhicaryavatara.

Source Bodhicaryavatara (A Guide to the Bodhisattva Way of Life), Shantideva tier 1

Visconti-Sforza, Tarot Decks

Standing Scholarly debate

Concerns Artist

Currently States Traditionally attributed to Bonifacio Bembo

The Morgan Library and Museum's own cataloguing and scholarship on its Visconti-Sforza cards, part of the Pierpont Morgan Bergamo deck, documents why the deck's traditional attribution to the painter Bonifacio Bembo has been complicated rather than confirmed by closer study. No contemporary document names the painter of the cards, so attribution rests entirely on connoisseurship, comparing painting style, technique and handling across the individual cards against securely documented works by candidate painters. That comparison finds more than one hand present in the surviving cards, and specialists have reassigned part of the work away from Bembo to Antonio Cicognara and to the Zavattari workshop on stylistic grounds. Because the method is attribution by eye rather than by document, and different specialists have read the same brushwork differently, the painter or painters of the deck remain a genuinely contested question rather than a documented fact.

Source Visconti-Sforza tarot cards (Pierpont Morgan Bergamo deck), The Morgan Library and Museum tier 1

Visconti-Sforza, Tarot Decks

Standing Scholarly debate

Concerns Artist

Currently States The attribution is contested and more than one hand is present

The Morgan Library and Museum's own cataloguing and scholarship on its Visconti-Sforza cards, part of the Pierpont Morgan Bergamo deck, documents why the deck's traditional attribution to the painter Bonifacio Bembo has been complicated rather than confirmed by closer study. No contemporary document names the painter of the cards, so attribution rests entirely on connoisseurship, comparing painting style, technique and handling across the individual cards against securely documented works by candidate painters. That comparison finds more than one hand present in the surviving cards, and specialists have reassigned part of the work away from Bembo to Antonio Cicognara and to the Zavattari workshop on stylistic grounds. Because the method is attribution by eye rather than by document, and different specialists have read the same brushwork differently, the painter or painters of the deck remain a genuinely contested question rather than a documented fact.

Source Visconti-Sforza tarot cards (Pierpont Morgan Bergamo deck), The Morgan Library and Museum tier 1

Vivekachudamani, Esoteric Texts

Standing Scholarly debate

Concerns Attributed Author / Compiler

Currently States Traditionally attributed to Adi Shankara; doubted by most modern scholars on grounds of style and vocabulary.

The Vivekachudamani, a widely read Advaita Vedanta manual on discriminating the real from the unreal, is traditionally ascribed to the eighth century philosopher Adi Shankara, but modern scholarship of his corpus questions whether he wrote it. Karl H. Potter's edited Encyclopedia of Indian Philosophies, Volume III: Advaita Vedanta up to Samkara and His Pupils (Motilal Banarsidass, 1981), the standard scholarly bio-bibliographical reference for this period of Advaita thought, surveys the authenticated and disputed works attributed to Shankara. The method is philological and doctrinal, comparing the text's style, vocabulary and specific philosophical positions against Shankara's securely attested commentaries, principally his commentary on the Brahma Sutras, for consistency of terminology and doctrine. Because popular devotional and pedagogical texts were commonly attributed to a school's most famous name regardless of actual authorship, and the Vivekachudamani's style and some positions differ from Shankara's secure work, its authorship by him remains an open question rather than an established fact.

Source Encyclopedia of Indian Philosophies, Volume III: Advaita Vedanta up to Samkara and His Pupils, Karl H. Potter (ed.) tier 1

Vivekachudamani, Esoteric Texts

Standing Scholarly debate

Concerns Era of Composition Start Year

Currently States 800

Modern scholarship, including Sengaku Mayeda, Michael Comans and Robert Gussner's stylometric analysis, rejects the traditional ascription to Adi Shankara on grounds of style and doctrine, reading the poetic, devotional register as incompatible with Shankara's own argumentative prose commentaries. With Shankara's authorship set aside, the text is placed within his school sometime after his eighth century CE lifetime, but no external reference or manuscript fixes how much later, leaving centuries of the medieval Advaita tradition as the honest range rather than a single point.

Source Encyclopedia of Indian Philosophies, Volume III: Advaita Vedanta up to Samkara and His Pupils, Karl H. Potter (ed.) tier 1

Vivekachudamani, Esoteric Texts

Standing Scholarly debate

Concerns Era of Composition End Year

Currently States 1300

Modern scholarship, including Sengaku Mayeda, Michael Comans and Robert Gussner's stylometric analysis, rejects the traditional ascription to Adi Shankara on grounds of style and doctrine, reading the poetic, devotional register as incompatible with Shankara's own argumentative prose commentaries. With Shankara's authorship set aside, the text is placed within his school sometime after his eighth century CE lifetime, but no external reference or manuscript fixes how much later, leaving centuries of the medieval Advaita tradition as the honest range rather than a single point.

Source Encyclopedia of Indian Philosophies, Volume III: Advaita Vedanta up to Samkara and His Pupils, Karl H. Potter (ed.) tier 1

Vladimir the Great, Historical Figures

Standing Scholarly debate

Concerns How Its Legacy Is Contested

Currently States The testing of the faiths, in which Vladimir is said to have sent envoys to compare Islam, Judaism, Latin Christianity and Byzantine Christianity before his own conversion around 988, is a set piece written into the Russian Primary Chronicle (Laurentian text; Cross and Sherbowitz-Wetzor, trans., Mediaeval Academy of America, 1953) long after the event, whatever the conversion itself owed in fact to the marriage alliance with Byzantium.

Source The Russian Primary Chronicle (Povest vremennykh let), Laurentian Text, Anonymous (compiled at Kiev); Samuel Hazzard Cross and Olgerd P. Sherbowitz-Wetzor (trans.) tier 1

Vladimir the Great, Historical Figures

Standing Scholarly debate

Concerns Lifespan or Floruit Start Year

Currently States 958

The Russian Primary Chronicle does not itself record Vladimir's birth year with precision, and historians work it back from his known age at other chronicled events; around 958 is the commonly cited estimate rather than a fixed date.

Source The Russian Primary Chronicle (Povest vremennykh let), Laurentian Text, Anonymous (compiled at Kiev); Samuel Hazzard Cross and Olgerd P. Sherbowitz-Wetzor (trans.) tier 1

Voynich Manuscript, Artifacts & Relics

Standing Scholarly debate

Concerns Decipherment Status

Currently States Undeciphered; no accepted translation of the script or language.

Rene Zandbergen's The Voynich Manuscript: Origin and Radiocarbon Dating (2023) surveys the manuscript's decipherment attempts against its confirmed early fifteenth century radiocarbon date. Zandbergen's method is a critical survey of the many proposed decipherments against the manuscript's own script and statistical text properties, and he records that whether the text encodes a natural language, a cipher, a constructed artificial language, or is entirely meaningless glossolalia remains an open scholarly question, since no proposed decipherment has produced a reading independent scholars have been able to verify or reproduce.

Source The Voynich Manuscript: Origin and Radiocarbon Dating, Rene Zandbergen tier 2

Vulcan, Deities

Standing Scholarly debate

Concerns Origin of the Name

Currently States Vulcan, Latin Volcanus, gives English its word volcano.

The word does not derive transparently from ordinary Latin, and Roman religious scholarship has long suspected a non-Latin origin, possibly Etruscan, without settling on a specific source word. The connection to volcanic fire itself is secure; the deeper linguistic history of the name is not.

Source Religions of Rome, Volume 1: A History, Mary Beard, John North and Simon Price tier 1

Vyraj, Realms

Standing Scholarly debate

Concerns Origin of the Name

Currently States Etymology is debated among Slavic philologists: some derive Iriy or Vyraj from a root meaning whirlpool or flow, others connect it to rai, paradise, borrowed after Christianization; no consensus survives.

Source Encyclopedia of Religion, Mircea Eliade (ed.); Lindsay Jones (ed., 2nd ed.) tier 1

W, Alphabet Letters

Standing Scholarly debate

Concerns Chaldean Letter Value

Currently States 6

According To Modern planetary numerology, the scheme called Chaldean

The values recorded here follow Cheiro's Book of Numbers (Cheiro, the pen name of William John Warner, published by Herbert Jenkins, London, 1926), the most widely reproduced version of the so-called Chaldean numerology table. Cheiro's own text names no ancient Chaldean source for the letter values it assigns, and comparing it against other published numerology tables from the same and later periods finds no agreement between them on several letters; no Mesopotamian or Chaldean text has ever been produced that contains a comparable letter-number correspondence. That comparison is why historians of the modern occult treat "Chaldean" as a nineteenth and twentieth century marketing label rather than a checkable lineage claim. The value recorded here is Cheiro's published reading, not a settled fact.

Source Cheiro's Book of Numbers, Cheiro (William John Warner) tier 3