c.3500 words
edited to correct mis-spelling – 25th Sept – somewhere along the line ‘Lippencott’ made its way into the spell-check’s ‘don’t check’ list. My apologies to the scholar.
The author’s rights are asserted.

Introduction.
It should not come as much of a surprise that the series of diagrams we call the ‘Voynich calendar’ has not found any counterpart in the art of western Christian (‘Latin’) Europe. Nor, if also considered as a series, has the sequence of its diagrams’ central emblems.
It remains possible that some day there may found a work of Latin (i.e. western European Christian) origin in which there is comparable series of month- diagrams, presented on such a fold-in, beginning with March, following March with two segments each showing a goat, and then two segments showing bull-like forms, and which also includes a Scales of the same unusual construction, two lobsters for ‘July’ and a quadruped with a whip-like tail for ‘November’ – but none has been found yet during the century and more since 1912.
An analytical approach meets divergence from any theoretical norm not as if it were a social gaffe, politely to be ignored, but as a sign of potentially valuable information. In this case, we hope the information gained might ultimately assist those still wondering where and when they should look for whatever language or dialect (if any) informs the written text.
The major flaw in a widely promoted ‘central European-Ruolfine-German’ theory is that it takes as axiomatic too many of the old guesses, including the guess that although the series of central emblems in the Voynich calendar does not form a zodiac, or any coherent segment of one, it may be treated as if it did.
The analyst’s approach says rather, ‘Well, since it isn’t a zodiac, why isn’t it, and to what purpose was it made which has it differ so obviously from that theoretical model?”
If that were our present question, it would require considering the entire series – the central emblems included with their diagrams – but at present we are investigating the degree to which astronomical, historical and cultural information we’ve gained from diagrams in other sections of the manuscript does or doesn’t chime with information offered by the calendar. For the sake of the exercise, therefore, we will concentrate on just two of the central emblems, those overwritten with the month-names for November and for July.
From the earlier two analyses* it was concluded that those are most likely to have been brought into a Latin environment between the mid-thirteenth to later fourteenth centuries AD with one showing a greater proportion of its drawing compatible with the visual language of medieval Latin (western Christian) Europe than the other. Asian influence was recognised in both.
*of the diagrams on fol. 85r and fol. 67v-1.
Our now considering a couple of emblems from the Voynich calendar is done to test whether those astronomical emblems do, or don’t, say the same.
For newcomers, let me emphasise that any formal analytical study must treat the whole of any drawing or series: in the calendar that means both diagram and central emblem – no conclusions being valid which cherry-pick. However, this being an exercise and demonstration of research-method, we may use these two as example of how to progress through a work, piece after piece, testing and reconciling opinions gained from one item against those which follow, to build a cumulative study.
—
November.

Our attention having already been drawn, and repeatedly, to the south-western Mediterranean, the fact that the Voynich ‘calendar’-emblems were over-written with month-names in a dialect or language from that region, or linked directly to it by contemporary networks, makes it reasonable to begin there.
Below is a map showing entanglements between the relevant linguistic regions – those most densely coloured red – during the thirty years between 1358 AD to 1372 AD. It is not a maritime chart, nor a political map, nor does it map textual stemma. It illustrates the commercial network of trade and correspondence for one trading house while the Italian founder was resident in papal Avignon. I apologise for the map’s poor quality; it is as it appears in the source..

Francesco di Marco Datini was born in Prato, near Florence. His knowledge of commercial maths’ method and practice being most likely gained in Paolo Dagomari’s ‘abaco’ school* in Florence. Between regions speaking Catalan, Judeo-Catalan, Occitan (most often posited as providing the calendar’s month-names), goods and people travelled chiefly in the ships of Genoa, of Venice and of Catalonia.
*For more, and references, see earlier post, ‘Consider… Maths & memory Pt 1‘, voynichrevisionist, (January 13, 2022),
Edit: August 9th. The paragraph’s last sentence was poorly expressed. Please read: ‘Between regions… the ships in which goods and people travelled were predominantly those of Genoa, of Venice and of Catalonia’.

It was also in the context of the new abaco schools – dedicated to commercial maths, geometry, practical astronomy and navigation – that use of Arabic numerals was fostered in Latin Europe, and that simpler ‘4’ shape for the numeral – a form similar to one of the Voynich glyphs – was disseminated. Its earliest known instance occurs in 1375, in the great rose-gridded worldmap commissioned for the court of France from a Jewish master named Abraham Cresques’, a resident of Majorca.
As I first pointed out a decade ago, there are discernable points of connection between Cresques’ Atlas, early Genoese cartes marine in that new, rose-gridded style, and the Voynich map, but the last (as I concluded) comes of older and different origins, its final recension when Latin-compatible details were added, dating to about 1350 AD.
In Cresques’ work, the zodiac constellations are represented as a fairly standard series, but they do reflect a habit which we’ll see again, by which crab and scorpion are suggested related, or akin to one another. The same attitude is reflected by the zodiac in the Occitan manuscript, made about fifty years before (see header), – but that characteristic is not found in the Voynich calendar.
Caution: on the web there are many altered and edited images purporting to be from Cresques’ Atlas (also described as the Catalan Atlas). Some are over-written with large, white geomantic figures. Another that I’ve seen paints over, with gold, all the inscriptions that in the original are written in Hebrew letters.
By the early fifteenth century, when the Voynich quires are thought to have been inscribed, the finest ateliers and illuminators in this part of Europe were producing images of Crab and Scorpion in forms we might call ‘classic’ and which will be immediately familiar to a modern reader. Paris was still the intellectual capital of Europe, and Italy increasingly the artistic and literary capital of Europe, while other regions were still to come into full flower.
The new commercial ‘4’ for the numeral would not appear in Germany until after 1440 and in works produced from Germany and central Europe, forms were still employed – for Scorpius especially – which had been used in the south-western Mediterranean as much as four hundred years earlier, and which there had been largely superseded by the early fifteenth century.
Below is the ‘November’ page from a manuscript created in Burgundy within the same date-range as the Voynich quires’ vellum (1405-1438 AD). Its Crab was painted at some time between 1412 and 1416, though parts of its ‘November’ page were completed only between 1435-1489. The ‘November’ page looks like this.


Its Scorpion is recognisable as you see; and so is its Crab.
Unlike the Voynich calendar, these monthly diagrams show constellations extending across adjacent months, as astrological signs do, but which the Voynich month-diagrams do not.
Another difference, if a predictable one, is that this high-status and high-end work, despite its being made a quarter-century after Cresques’ Atlas, retains the older and by then conservative form for the numeral ‘four’.
What this indicates is that if – and we emphasise that if – the hands which wrote the Voynich ‘4o’ were accustomed to writing the numeral as ‘4’, it is unlikely that the manuscript was composed first in central Europe or by members of Latin Europe’s social or scholarly elites.
Further evidence of the work’s being used by and for persons of lesser standing is the fact that the month-names are inscribed in a southern vernacular dialect or language rather than in Latin.
On the other hand, it was during the period presently of most interest to us (1350-1430 AD) that use of a regional vernacular for literary compositions of all kinds was becoming not merely more popular among a few educated people but was becoming a hot political issue.
Initially fostered by the popularity of Occitan-speaking troubadores, as their popularity waned, a political movement arose which would ultimately develop into modern nationalism, with its less pleasant twin, active xenophobia.
The Italian Brunetto Latini had written his most famous work in the French vernacular, but Dante’s Cantos had the greater and more lasting impact over the period between their completion in 1320 and the end-date for the Voynich manuscript’s vellum (1438 AD).
Varieties of Occitan were spoken not only within the borders of what is now modern France; it was also spoken in parts of Italy and according to a wiki author (who provides no reference)
The first part of the name, Occ-, comes from Occitan òc and the expression ‘langue d’oc’.. is an appellation promoted by Dante Alighieri of Occitan by the way of saying “oui” in Old Occitan–Catalan; as opposed to the “langue de si” (Italian) and the “langue d’oïl” (“yes” in Old French).
*Dante’s son was another student of Paolo Dagomari’s ‘abaco’ school.
So, the frame within which the evidence offered by the Voynich calendar may now be explored means that wherever it was copied in the early fifteenth century, the probability is it was a region where Occitan, Judeo-Catalan etc. were understood. For the form(s) given its emblems for November and July – supposing they are intended as astronomical emblems – we cannot look to works first composed in fifteenth-century France and Italy unless the copyist’s intention was to reproduce faithfully forms found in some much older work. The Voynich ‘November’ beast is no expression of fifteenth-century fashion.
It is easy enough to resort to imagination (aka theory) to explain why, if it is an astronomical emblem, the November figure does not present the form of a scorpion. We might imagine :
- that the copyist had no idea what a scorpion looked like.
- that the copyist had no means to discover how one should represent the constellation Scorpius,
- that he had been struggling to understand Aratus in the original Greek and mis-interpreted αὐτὰρ ὑπ᾽ αἰθομένῳ κέντρῳ τέραος μεγάλοιο σκορπίου to mean not, “the great beast, [the] Scorpion” but “the great beast [whose name is] Skorpios” – and so drew his idea of ‘a great beast’.
And given the history of astronomical learning in medieval Latin Europe and the long, confused history for transmission of Aratus’ Phaenomena, the last might easily be accepted as plausible.

But imagination-as-theory is embedded in traditional Voynich method, so let’s leave it aside and begin working from physical evidence and the historical and cultural context.
What sort of works might have caused images of this kind to be included in the fifteenth century manuscript by persons who, it would seem, understood the dialect or language in which these month-names are written? What did they know about stars?
Astronomical or Astrological?
It has become a widely prevalent habit, if an unfortunate one, to describe any knowledge of the stars as either astronomy or astrology, but the distinction is inappropriate for our purposes and for the period of interest to us now.
To observe that different constellations along the ecliptic occupy the mid-heavens in turn through the year is not astrology, It is simple observation of fact.
To mark the months by twelve of those constellations and call the twelve the zodiac is not astrology either. It requires no more than observation, without need for any knowledge of mathematics or of astrological methods. The labels themselves are not ‘Scorpio’ and ‘Cancer’ but ‘November’ and ‘July’.
In the same way, navigation by the stars is arguably the oldest human science, older than the first cities, and older than mathematics as a formal discipline. So too, it is not astrology to say that in November, when a certain constellation rises to eventually occupy the mid-heavens at night, ships should not venture far from shore. That’s the fruit of common heritage and observation.
When you invent a character for that constellation, one which has it looking at the ships with a hostile expression, that’s still not astrology; its popular lore. Associating a star or constellation with a place on earth can be, but is not necessarily, astrology either. As our default term, then, we use ‘astronomical’ keeping ‘astrological’ for cases where that purpose is clearly expressed by the internal evidence.
So – even granting, as a first possibility, that all the central emblems in the Voynich ‘calendar’ depict constellations which lie along the ecliptic – zodiac constellations – it cannot be presumed from that alone that the series of diagrams, or the series of its central emblems, had astrological purpose – unlike those split-month images we see in the Très Riche Heures du Duc de Berry, illustrated above.
Indeed, we have had the opinion of two scholars, independent of each other and of Voynicheros’ influence – at least then – who have stated plainly that the diagrams in the Voynich ‘calendar’ are not astrological charts*.
*for details see earlier post D.N.O’Donovan, ‘Skies above – not astrological’, voynichrevisionist, (February 9, 2020)
In this same connection we remind readers, that shortly after publication of his great study’s* second volume, Fritz Saxl was asked by John Matthews Manly, who sent him copies of pages from the Voynich manuscript, to comment on them. Saxl replied, as so many eminent specialists have done when asked to apply their knowledge of medieval Europe’s history and art to this manuscript, that nothing struck a familiar chord.
- Verzeichnis astrologischer und mythologischer illustrierter Handschriften des lateinischen Mittelalters. Vol. 1, Heidelberg: C. Winter, 1915, Vol. 2, Heidelberg: C. Winter, 1927, [Vols. 3 & 4, Meier, Hans, and Bober, Harry, and McGurk, Patrick.]
- For more details and reading list, see D.N. O’Donovan, ‘What magic? Where magic? 3d: Germanic opinion and German scholars‘, voynichrevisionist, June 29th., 2021. By now, something of the same material may have been incorporated into Rene Zandbergen’s collected information at voynich.nu.
Lippincott’s ‘Saxl’ Project: hunting the November beast.
Led by Kristin Lippincott, the ‘Saxl Project’ is again concerned with collecting and grouping zodiac images, making pdfs of the material available through Lippincott’s website.
The Saxl project – Led by Kristen Lippincott and run jointly with The Warburg Institute, University of London. It has also benefitted greatly from previous collaborative research, which was carried out with Dr Elly Dekker of Utrecht University, between 1997 and 2007.
Among images collected to illustrate Scorpius are a few which show it drawn more like a lizard or a warm-blooded beast than a true scorpion. For us, at present, it matters less where these manuscripts are now or even when they were made, than the textual sources which were being copied in them, and Lippincott’s taking note of those sources (as most Voynicheros’ efforts have not) shows the source-texts are just three, all of which were known to some, at least, in Latin Europe before c.1350 AD.
One is a work written by a Roman of the pre-Christian era. The other two are medieval works written by Englishmen – one of whom never left England and rarely travelled beyond his monastery, and the other of whom studied in Paris, in Toledo, in Italy and at the Norman-Sicilian court.

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The Roman-era work is a primary-school level ‘crib’ called the Astronomicon Poeticon. It is popularly, if doubtfully, attributed to Gaius Julius Hyginus (c. 64 BC – AD 17). The first of the Englishman is Bede, whose authorship of De signis caeli is also widely doubted today, but the work itself is reasonably ascribed to the period in which he lived (673- 735 AD).
Only the third source is securely attributed and dated. That is Michael Scot’s Liber Introductorius, completed in 1228.
Scot is best known today for the time he spent in the Sicilian-Norman court, but Scot brought to that court what he had learned earlier, including proficiency in Arabic and in Hebrew, both of which were commonly spoken in the Sicily of his time. Scot’s studies included mathematics, astronomy and natural history. Together with Andrew the Levite, he had already translated in Toledo the text of al-Bitrūjī’s de motibus celorum.
- ‘Critical Edition of the Latin Translation of Michael Scot by Francis J. Carmody’, review by Marshall Clagett, Isis, Vol. 44, No. 3 (Sep., 1953), pp. 280-281.
There has been little scholarly attention devoted to the iconography of Scot’s Liber Introductorius, and influences from older North Africa have been largely overlooked, as has his list of ‘Berber’ star-names and the full range of sources from which Scot worked. Apart from those still well-known, Scot refers to – but here let me quote Edwards:
Scot … mentions other authors [in addition to the most widely known] … such as the Tacuinum of Cleopatra, Isidore, Bede, Ambrose, “Alexander the Great,” Empedocles, Euclid, Hermes, Haly, loanton and Nemroth, Rasis, and Macrobius. He mentions the Tables of Toledo as being especially useful. He cites Pythagoras, Socrates, Cicero, Plato, Pliny, Cato, Galen, Jerome, the Sybil, and John of Spain.
Glenn Michael Edwards, ‘The Liber Introductorius of Michael Scot’, thesis (PhD), University of Southern California, 1978.
What this tells us is that, whatever the source of the astronomical information embodied by the Voynich calendar’s diagrams, the emblems used to fill the centres – and particularly November’s ‘beast’ – come from a source already known to Latin Europe before 1350 AD but which may not be a classic text or even one extant today.
We also have the example provided by diagrams in the astrological Libros del Saber to show that astronomical-astrological diagrams might later have central emblems added or created for them by later copyists. To paraphrase an earlier comment*: Diagrams in copies of the ‘Libros..’ differ from copy to copy, as one might expect, but the difference is so strongly pronounced in their central emblems that one has the clear impression each copyist was obliged to find exemplars for these details himself.
*made in connection with Panofsky’s assessment of the Voynich manuscript, as reported by Anne Nill, that “except for one page partly taken from Alfonso’s manuscript, [our manuscript] was entirely unlike any manuscript known to him.”
So at last the parameters for researching these two emblems are defined. Our initial focus will be on a period between 1350-1438 AD. We begin from the regions in which Occitan was written and understood. We do not presume astrological purpose. We allow for the possibility that the central emblems were added to, not obtained together with, their diagrams. We know there is a high probability that the central emblems, at least, were gained from some older source already known in the Latin sphere by no later than 1228 and possibly much earlier… and so now, to work.

Postscript – Michael Scot and the Munich [M] source:
Speaking of an important Italian ms now Munich, Bayerische Staatsbibliothek, Ms CLM 10268, Edwards remarks that in the margin of folio 125C is a horoscope by Bartholomew of Parma, dated 1287, and that this “presents a terminus ante quem for the exemplar, since the paleographic evidence does not support so early a date for this manuscript”. He goes on to say of this source, described as M without quotation marks:
The script is a compact Italian book Gothic, the letters being quite square. The “M” is made of three very sharp minims, and the “A” tends to form two loops, with the top of the letter almost touching the bottom loop. M in addition uses both the upright and the uncial “D”. These are characteristics of the last quarter of the thirteenth century, but the use of the looped rather than the upright final “g” is indicative of the early fourteenth century.
In view of the fact that Italian hands changed so slowly, it is difficult to place them with accuracy. Yet the style of script will justify an ascription of the date to circa 1300 more readily than to any other. I have attempted to push back the date of the manuscript to 1287, and discussed the matter with Virginia de la Mare, Assistant Keeper of Western Manuscripts for the Bodleian.
Glenn Michael Edwards op.cit. pp. x-xi.
In her view, the decorations and colors used in the illuminations are characteristic of those executed at Bologna from 1300 to 1310 and cannot justifiably be ascribed to an earlier time.