Introduction
⌅One of the notable features of the early modern period is the large production of astrological almanacs, driven forward by the development of the printing press. Among this varied genre of publication were prognostications on the quality of the year, the effects of planetary conjunctions, visible eclipses, and the occasional comet. The simpler almanacs were little more than calendars enhanced with data on lunations, tides, and other agricultural information. However, the more sophisticated almanacs involved a much more complex knowledge and skill sets. This means mathematical and astronomical expertise and an in-depth knowledge of astrological practices. This higher tier of almanacs presented yearly prognostications for weather and economic conditions, some even commenting on current-day politics.1
Many of the astrological effects predicted through the judgement of eclipses, comets, and seasonal ingresses were specific to the location for which the respective astrological chart had been calculated. Thus, a large part of the judgement relied on the position of the phenomena (ingress, eclipse, lunation, etc.) in relation to the local horizon. However, the astrological canons allowed a wider scope of interpretations. These were generally used to obtain a more worldwide perception of the effects and were applied when the timing of a chart was difficult to ascertain, such as the appearance of a comet, or to identify where certain effects of an eclipse or a conjunction were likely to be felt.
The most important of these astrological canons was geography. This is not just in the form of the latitude and longitude required for the computation of charts but also in the association of signs and planets to certain countries, lands, and peoples: what is known as astrological geography or astrological chorography. This allowed the astrological practitioner to better deduce where the effects of a given astrological configuration of phenomena would have greater effects. At the same time, it provided a cultural and behavioral profile of the people of a certain region, kingdom, or city.
Due to its recurrent and prominent presence in astrological texts, some astrology historians have addressed this topic. The earliest studies, by Cumont and Bouché-Leclercq, focused mainly on the Greek traditions, such as those of Manlius and Ptolemy, by emphasising their relevance and central role in astrological practice.3
The present paper proposes to contribute to bridging this gap by taking a detailed look into astro-geographical attributions to the territories of the New World and, to a lesser extent, into existing references to the African and Asian territories unknown to ancient and medieval sources. Current historical research has engaged many of the novelties and transformations in European knowledge derived from the discovery of the American territories, which has generated a vast and varied academic production too large to debate here. The topic of astrology, however, has been addressed in a very limited form. Historians Jorge Canizares Esguerra and Claudia Brosseder have contributed most to this matter. They have demonstrated how the search for an astrological identity in South America had a noticeable role in the racial profiling of Indigenous and Creole populations and emphasized the narratives of their difference from Europeans.6
This paper offers a development of the understanding of the astro-geographical discussions on the American continent by engaging the technical discussions within the context of the history of science. It studies the existing astrological sources on the New World to provide an updated view of this topic and its historical discussion and offer a map of the diverse opinions on the astrological correlations of the new territories from the sixteenth to the eighteenth centuries. Furthermore, it explores how the astrologers engaged with this technical problem by attempting a modification of the known traditional doctrines to fit the new paradigm of an expanded Earth.
The World and the Zodiac
⌅Since antiquity, there has been a tradition linking regions, kingdoms, and cities with zodiacal signs and sometimes with planets. This was an established part of the astrological tradition even when political changes divided ancient territories or gave rise to new kingdoms. One of the earliest sources of this methodology (Figure 1), Marcus Manilius (fl. 1st cent.), considered that the world was:
Distributed among the twelve signs, and from the signs themselves must the laws prevailing among them be applied to the areas they govern; for these areas maintain between themselves the same relationships as exist between the signs; and just as the signs unite with each other or clash in enmity, now confronting one another across the sky and now linked in triangular federation, or as some other principle directs them to their various feelings, even so is land joined with land, city with city, and shores are at war with shores, realms with realms.8
As in many other aspects of astrology, Ptolemy was an extremely influential author in the matter of astrological geography. He dedicates an entire chapter of Tetrabiblos to discussing these associations and offers a system of attributions of lands to signs and planets according to the directions of space and the four elements.9
By the early modern period, astrologers had structured a consistent corpus of sign associations to the main territories, kingdoms, and cities, which could be found in most astrological books, usually in the section discussing the qualities of the signs. These associations were chiefly used to predict where the effects of a planetary conjunction, an eclipse, or a comet would fall. According to the astrological doctrine, the effects would be observed mainly in the territories under the sign where the conjunction or eclipse took place or those under the signs where a comet had passed.
In the sixteenth century, this geographic correlation system faced a challenge of great importance that tradition was unprepared to deal with: the European maritime expansion and the discovery and colonization of new lands. While astrological doctrine had accounted for and encompassed the progressive historical variations in the divisions of territories, its ancient scheme had always been used as a template for these modifications. However, most of the novelties brought forth by maritime travel seemed beyond traditional limits. The distant regions accounted for by Ptolemy began to be explored in unparalleled detail, and even more significantly, an entirely new continent had been discovered. Astrologically speaking, the extended geography of Africa and Asia had some astrological foundation on which to base new associations, as proposed by Ptolemy and other ancient authors. The New World, however, was an unprecedented challenge to astrological doctrine. Since these regions were completely unknown, astrological associations had never been established for them. Consequently, estimating the impact of astrological phenomena such as conjunctions, eclipses, and lunations on these new territories would be difficult. This would have been more pressing once the occupation of the territories had begun.
These discoveries prompted a reaction from the scholars of the period. Consequently, the territories of the New World were very early associated with the element of water.10
This association had direct implications for astrology and medicine regarding the effects of the temperament of the new lands on European bodies and the temperament of those born in the New World. Jorge Canizares Esguerra and Claudia Brosseder have studied this matter extensively and shown how early astrological correlations for South America impacted the racial perception of the indigenous and Creole population.11
However, despite their implications for racial identity, the association of America to the phlegmatic temperament (and later with also the sanguine complexion), as well as the discussion about the brightness of the stars, were, in an astrological sense, only generalisations with limited practical applications.14
Under the Sign of Capricorn
⌅The cosmographer Enrico Martínez (1550-1632), working in New Spain since 1589 seems to have been the first to attempt an association of a zodiacal sign to the territories of the New World.17
The first method was to assume that each land would be subject to the sign rising on its horizon when the world was created. Here, he brought forward a core concept of the astrological tradition, the Thema Mundi, which is the astrological chart of the beginning of the world.19
In the early modern period, there were several propositions for of the Thema Mundi. Almost all agreed with Cancer rising, but there were some disagreements on the exact degree of the ascendant. The positions of the planets by sign and degree also changed according to the opinions of different authors. 21
Martínez’s is very specific regarding his source which is Francesco Giuntini (1523-1590) and Pierre d’Ailly (1351-1420) as cited by Giuntini.22
Cardinal Pierre d’Ailly, a most knowledgeable man, and one of the authors that the aforementioned doctor Francesco Giuntino quotes, says that at the beginning of the creation of the World, the first degree of Aries was in the midheaven. This considers the meridian of the city of Damascus, according to which this computation is made. The longitude of Damascus is sixty-nine degrees and that of Mexico, the kidney of New Spain, two hundred and sixty-eight of which subtracted the sixty-nine, come to one hundred and ninety-nine which is the arc of the equinoctial that exists between the meridians of said cities. These one hundred and ninety-nine are the right ascension value of twenty degrees of the sign of Libra, which was thus in the meridian of this city of Mexico. Proceeding thus according to the doctrine of Johannes of Monteregio, that is, adding to this right ascension of the midheaven, ninety degrees, results two hundred and eighty-nine, which in the table of the oblique sphere for the height of Mexico, come to nineteen degrees and fifteen minutes, which correspond to ten degrees of the sign of Capricorn. This was (if the opinion of d’Ailly is correct) the sign of the ascendant of this land in the creation of the World.23
Although Martínez was cautious about a method that depended on an alleged chart of the creation of the World with all the assumptions and opinions attached to it, he considered it an acceptable starting point. He established that New Spain was under the sign of Capricorn. His conclusion, he believed, was reinforced by more empirical data from the recent conjunctions and comets in the sign of Capricorn and its triplicity.24
Vertical Stars
⌅The second method Enrico explores is that of the signs and stars, which are vertical to these lands. This method is drawn from the standard methodology for the judgement of comets, where their path in the celestial sphere is projected to the Earth as geographical latitude to assess where its major effects would be felt:
According to the doctrine of Johannes Sacrobosco in the third chapter of the treatise on the Sphere, all this New Spain falls within the torrid zone, and the main part of it, together with the City of Mexico, falls at the end of the first clime and beginning of the second. Its vertical signs, from a height of eleven and a half to twenty and a one-fifth degree, are Taurus, house of Venus, and Leo, house of the Sun. The constellation that transverses through the vertical points of almost all the region is the image of the horse Pegasus, which is composed of twenty stars and extends from the Equinoctial line to the Artic pole from seven degrees up to twenty-five, although other constellations also do the same, none of them extends through it as much as this one. […] And because in the time of the creation of the heavens, according to Aesculapius and Anubis, and according to the Arabs and Egyptians, the planet Venus was positioned almost at the meridian of Mexico, having its main domain over the tenth house and essential dignity on the ascendant, which are the main angles, and also because Taurus, the vertical sign of this region is the house of Venus: it seems that this is the planet whose qualities have greater power and influence over this land; and with the participation of the Sun because, according to some authors, it was in the house of Venus when it began to illuminate the World, and because its sign also traverses the vertical points of the region. Therefore, it seems that the planet that predominates in this kingdom is Venus, with the participation of the Sun.25
Thus, Martínez projected the terrestrial latitude of the main area of New Spain, including the city of Mexico, onto the celestial sphere, which corresponds to the declinations occupied by the signs of Taurus and Leo, the houses of Venus and Sun, respectively.26
Relying once again upon the chart of the creation of the World, Martínez further concludes that Venus, as ruler of Taurus, will have more influence in this region than the Sun, the ruling planet of the other vertical sign, Leo. According to his rationale, Venus was in the tenth house and almost on the meridian of Mexico, a powerful placement for a planet. Furthermore, Venus had the dignity of triplicity in the ascendant, Capricorn.27
Cisneros’ Critique
⌅A decade later, the physician Diego de Cisneros (fl. 1618Cisneros, Diego de, Sitio, naturaleza y propriedades de la ciudad de Mexico, Mexico, Joan Blanco de Alcaçar, 1618.), discusses this matter again. Working in the city of Mexico like Martínez, Cisneros published the book Sitio, naturaleza y propriedades de la ciudad de Mexico in 1618, where he discusses Mexico’s climate and land.30
Then he proceeds to discuss the matter of the planets and signs that influence Mexico, but readily admits the difficulty of the task:
More difficult is the knowledge of what planets have domain over one city or kingdom and to which sign they are subjected so that from this knowledge, their influences can be judged and known the time when they receive larger or lesser changes from them.32
Cisneros revisited Martínez’s arguments, stating that they are commonly accepted and confirmed that he was the first to address this matter. However, he observed with concern that whoever is the first to put forward an idea has the greatest impact, but unfortunately, Martínez’s proposal was full of errors. The first he addressed was the date and location of the chart of creation. This led him into a detailed debate on biblical chronology that extended over twenty pages. Only then did he address the astrological and mathematical errors. Even considering the main argument of the Thema Mundi as correct, there were many opinions on this chart. Other sources attributed the midheaven of Damascus as 15° of Aries, which would lead to 5° of Scorpio in Mexico’s midheaven and 24° of Capricorn in the Ascendant. Additionally, he addressed the central problem of the correct value for the longitude of Mexico, which Cisneros considered to be 283° and not 269°. This resulted in a rectification of Martínez’s numbers to a midheaven of 7° of Scorpio and an ascendant of 25° of Capricorn. However, if the midheaven of the Damascus chart were 15° of Aries, as Cisneros’ other sources state, then the values would be 21° of Scorpio for the midheaven with 9° Aquarius rising. This would also invalidate Martínez’s conclusions regarding Venus being the ruler of the region. Furthermore, Cisneros argues that even if Venus (as well as the Sun) should be considered since their signs of Taurus and Leo are vertical to Mexico, the same should apply to the other regions of the World where this is so. Yet, “experience and philosophy deny this”.33
Cisneros also disagrees with Martínez regarding the temperament of the local people, being phlegmatic. He considered this temperament did not describe the common traits of the indigenous population and suggested them to be mainly sanguine.34
Despite his objections, Cisneros still considered that lunations, eclipses, and ingresses would be the appropriate factors to study the natural and political changes in the region of Mexico, whatever its sign or influential planet may be. He dedicates a greater part of his book to the complexion and specific properties of the land and the diseases of Mexico. Still, an overview of the doctrines in his book reveals that his application of medical astrology was quite the same as it would be practised in any European context. No new astrological ideas or concepts appear to have been included.35
The positions of the two authors are quite revealing of the problem at hand. Enrico Martínez, on the one hand, attempts to solve the problem with astrological and astronomical reasoning. For this, he relied greatly upon the assumed astrological chart of the beginning of the world, the Thema Mundi. Many classical, medieval, and early modern authors connected this mythical moment and its chart to various canonical concepts of astrology, such as the houses and exaltations of the planets and the aspects.36
Cisneros’s concerns regarding this theory were quite solid. Needless to say, the existence of an hour and place for the moment of creation was quite problematic. However, his discussion of this matter was somewhat pedantic and missed the point of the Thema Mundi as a sort of archetypical model for the astrological canons. The matter of the correct value of longitude, nonetheless, is what dealt the final blow to Martínez’s theory.
While Martínez made a working proposal and ran with it, Cisneros believed it was impossible to know what sign and planet influenced this region and preferred to continue using the standard methods without any speculative innovations. Cisneros was also concerned with the popularity of the association of New Spain to Capricorn and feared that it would be difficult to contradict it. He was apparently right on that point because, as shown below, the association of the sign of Capricorn with the New World became common in many astrological printed texts of the seventeenth century.
Notwithstanding this debate, and despite being very common for astrology books to list the association of signs to territories and cities, it is very rare to find any for the New World, the southern regions of Africa, or even Eastern territories like India, China, and Japan. This is especially odd in Portuguese and Spanish astrological publications, which could be assumed to have much more experience in these matters than any other European power.37
Calancha’s Chorography
⌅As to the signs of cities and regions, like other facets of New World astrology, little is discussed in this regard except by those practising it in the Southern Hemisphere. A good example is the work of the Augustinian Antonio de la Calancha (1584-1684), the Corónica moralizada del orden de San Agustín en el Perú (1639Calancha, António de la, Coronica Moralizada Del Orden de San Agustin En El Peru, Con Sucesos Egenplares Vistos En Esta Monarquia, Barcelona, Pedro Lacavalleria, 1639.).39
Seeing the little that is written and how admirably things could be written on the several stars of this sky of Peru, which the ancients did not know of because they lived in Europe and Asia. The moderns don’t think about them, either because they don’t see them or because they do not know them. Stating it straightforwardly, because some wish for it but don’t understand it, and if some know, they prefer to use their time to count ten pesos than a hundred stars.40
And there are parts of sky, groups of stars, that are not in the ephemeris nor have been touched with a quill by astrologers and sailors. I compared our stars of which those in Europe speak with those I observed in Lima, and I found absurdities and false information. I made two notebooks, one with the signs and planets that influence each province of this New World, from Newfoundland [Estitoland] to [the strait of] Magellan, naming the influences that they are inclined to, without departing a single point from Ptolemy and David Origanus, and placing the nations over which they predominate and what they produce according to their influences. The other [notebook] deals with the new images of stars and those which fall vertically in each city where my religion has a convent.41
Although these two notebooks referred to by Calancha were apparently lost, his published material is quite representative of this astrological work. Calancha used a similar rationale to the one by Martínez following Ptolemy and Origanus. He considered the stars vertical to the town and their attributes, but he also made associations of signs to the regions, which he does not always explain. He considered most of the present-day Peru and Chile region to be under signs of the elements air, Gemini, Libra, and Aquarius, possibly due to its temperate climate. He then combined the natures of these signs, stars, and related planets to explain certain characteristics of each region or town:
The stars vertical to Cusco are the stars that follow the three in the straight line of the Hydra, which is of fourth magnitude and of the nature of Venus; the star that precedes these three of the Hydra, which is of the fourth magnitude, and the nature of Venus, and it moves through the meridian of Cusco with twenty-nine degrees and fifty-two minutes of Leo. The star of the knee of Ophiuchus, which is of third magnitude and of the nature of Jupiter, moves through the meridian of Cusco with thirteen degrees and six minutes of Sagittarius. The signs predominating over Cusco are Gemini, Libra, and Aquarius, over whom Saturn, Jupiter, and Mercury have dominion. Saturn inclines them to superstitions, ceremonies, and rites regarding the dead; Jupiter to empire, magnificence, and greatness; and Mercury to wisdom and prudence, coveting profit and striking deals. All this that Ptolemy says was seen in Cusco and its surroundings since it was made the head of this empire and held together this powerful monarchy.42
Calancha extended this rationale to several other towns of the Kingdom of Peru such as Trujillo (page 486), Guadalupe (page 548), Quito (page 680), Arequipa el Mar (page 685), Oropesa (page 722), Potosi (page 747), Villa de Valverde, Ica (pag. 755), Zaña (page 851), Pucarani (page 866), Guanuco (page 892), Tarija (page 904), Nasca (page 905), Cañete (page 906). However, his most complex account is that of Lima.43
If an astrologer were to undertake the study of the stars to know from the signs and planets what they influenced in this city of Lima, which ones, and with what effects, he would say (according to the doctrine of Ptolemy, David Origanus, Garcaeus, and of Cardano) that from the hour and day when the city began to be built, may the predominant [sign] be deduced. This [will be done] chiefly from the ascending sign, and that the city of Lima was founded on a Monday, which was the day of the Moon, and the eighteenth of the month of January, and because it was between ten and eleven on that day, the ascendant was Pisces. In all, this region, Gemini predominates, as it is proven elsewhere.44
His discourse is somewhat confusing regarding the dates he used, and some planetary positions are dubious and difficult to verify, since he did not offer any chart or even enough information to reconstruct one. In any case, he considered Pisces to be the sign of the city because this was the sign of the ascendant at its foundation. He also used the sign of the anti-meridian, which is the fourth house in an astrological chart representing cities and the land generally with Gemini on its cusp, as well as the position of the Moon, whose sign placement is not entirely clear, although he refers to the sign of Virgo. From the latter, he made several interesting considerations in the description of Lima. Using several sources he diligently cited, he recalled the canonical association of the Moon with the seventh house of an astrological chart, which signifies marriages, and thus, the people of Lima will be inclined towards marriage.45
Further research is needed to assess how influential Calancha’s text was among practitioners and students of astrology, especially outside the South American context. Given the lack of references and the common absence of astro-geographical references or debates on the American continent in astrological literature in the following decades, it was likely to have been very small.
Yet, this must have been a very active debate for the increasing number of South American practitioners. In his text on the comet of 1664, the cosmographer Francisco Ruiz Lozano (1607-1677) listed several regions of South America in the way they usually appear in treatises and this type of judgment. He offered no explanation or sources as if this were common knowledge:
Sagittarius dominates in Arabia Felix, Crete, Candia, Egypt, Spain, France, Flanders, and Portugal; also in these occidental parts, especially in the Kingdom of Chile, the cities of Valdivia, Osorno, Conception, Santiago, and others.47
[…]
The sign of Leo, entirely traversed by this comet, has domain over Italy, Phoenicia, Chaldea, the Kingdom of Bohemia, part of Turkey, and in the great district of the Kingdom of Peru; and of the cities, in Lima, and the spaces of the interjacent coast, from Cabo de Pasados to Morro Moreno.48
This suggests that outside of the printed word, debates had occurred, and conclusions were reached on which signs ruled each territory or city, of which, unfortunately, we have so far, no record. Even some years later, in his Discurso Cometologico on the great comet of 1680, the physician Joseph de Escobar Salmeron y Castro (c.1625-1684) referred to Capricorn as the “radical sign” over New Spain possibly following the initial suggestion by Martínez. This association, he stated, had been verified by the effects of the conjunctions, eclipses, and other phenomena in this sign despite the problems with the rationale involving the chart of creation.49
Beyond South America
⌅Beyond the descriptions of the South American practitioners, the absence is not complete. Some rare but revealing accounts of the astrological associations for these regions are mentioned in mid-seventeenth-century English almanacs. By the middle decades of the seventeenth century, the political crisis in England allowed more freedom in the printing press. This allowed a flourishing of English astrological almanacs free of the limitations the Inquisition imposed in the Iberian context. This also coincided with the growing presence of the English as a power in global navigation and trade. The astrological almanacs reflected this new geographic, political, and social context.51
Another interesting example of the application of astrology to the New World comes from another prolific almanac writer, John Gadbury (1627-1704). In 1673 and 1674, Gadbury published the Jamaica almanack, calculated for Jamaica, Barbados, and “other adjacent islands in the West Indies, under the dominion of His Majesty of Great Britain”.55
In the first edition of 1673, instead of making any consideration as to sign associations to these territories, which his contemporaries place under Capricorn or Taurus, Gadbury used a foundation chart for Jamaica. He considered not the chart of its discovery or colonization but the chart of the English conquest of the territory, which he considers occurred on 10 May 1655 at 3 hours p.m. (Figure 7). Thus, the chart of the English conquest stands in Gadbury’s view as a sort of natal chart of the Jamaican territory, at least from an English point of view. He applied directions of the so-called hylegiacal points of the chart and even spoke on calculating longevity as it would be done for a natal chart.56
Despite the use of new forms, it would be expected for these types of studies or references to sign associations to gradually become more common. Still, they are practically non-existent in the English almanacs of the second half of the century and even less so in those published in North America, which, for the most part, are just simple ephemerides with little to no astrological judgement. There are several possibilities for this absence. First, it must be considered that by the second half of the seventeenth century, there was a steady decline of astrology as an accepted form of knowledge. This could have invalidated further studies on the matter of astro-geographic associations. Secondly, the inherent difficulties and uncertainty of such associations might have led the new generation of astrologers to replace this methodology with what they considered to be more reliable or rational methods. Another contributing factor was likely the substitution of proper astrological almanacs with either simple calendars or with the satirical almanacs that became popular in the last decades of the seventeenth century.58
The system, however, survives in later writings. A century later, physician and astrologer Ebenezer Sibly (1751-1800) still offers listings with the correspondences of signs with territories and cities in his book, A Complete Illustration of the Celestial Science of Astrology (1788Sibly, Ebenezer, A complete illustration of the celestial science of astrology: Or, The art of foretelling future events and contingencies, by the aspects, positions, and influence of the heavenly bodies; founded on natural philosophy, scripture, reason, and the mathematics. In four parts, London, Green and Co., 1788.).59
Yet, despite applying these associations in a traditional form on ingresses and eclipses, he is also continuing the trend of foundational charts as astrologers of the earlier century, such as Calancha, Lilly, and Gadbury. The best example is his discussion on the astrological chart of the independence of America from British rule, offering an illustrative plate (no.53) with the chart (Figure 8).61
Final Thoughts
⌅Due to its pervasive presence in early modern culture and cosmology, astrology becomes a good example of the impact of maritime expansion on traditional knowledge. With the expansion of geographical information, new astrological rationales had to be developed to accommodate the astrological-geographical correspondences that underline the common and necessary judgements of weather, state of the year, and medical conditions. Thus, the exploration of new lands and continents was happening not only in the disciplines more commonly discussed historically, such as cartography, navigation, and natural history, but also in astrology. Although there are no specific historical studies on the astro-geography of the New World, for the early modern class of educated practitioners, which included cosmographers, physicians, as well as astrologers, this was an important practical problem which affected the efficiency of their craft. It becomes evident from the sources studied that this problem was being debated and tested in practice. Either devised from practical experience or by some transposition of traditional knowledge, a system of correspondences for the New World seems to have been created and put into practice by the mid-to-late seventeenth century. In the writings of this period, astrologers referred to the signs associated with the new territories without any apparent doubt and displayed confidence in such correspondences. Usually mentioned amidst a judgement of a comet or eclipse or listed, these sign-to-region associations are given without explanation.
Only Martinez and Calancha, working with a blank canvas, offered some clues to the rationale behind their proposals. What emerges from their writings is a fair attempt to adapt known and time-tested traditional methods to a new context. This is done quite cleverly either by using the ancient model of the Thema Mundi, which codified many of the principles of astrology, or by adapting methods usually applied to cometary judgements. Even if no agreement was reached among authors, the thought process reveals respect and trust in the astrological tradition paired with a deep knowledge of the foundational canons of astrology. This is quite evident in Martinez but not so much in Cisneros, who, despite presenting strong and valid counterarguments, does not seem to grasp the ingenuity of Martinez’s suggestion. However, in later almanacs by Ruiz Lozano and Salmeron y Castro, this tradition is being used as expected in the discussion of comets, conjunctions, and eclipses. This means that despite the scarcity of documental evidence, this discussion produced some form of local tradition by which South American astrologers could provide the same type of medical, meteorological, and political forecast for the virreinatos as commonly practised in Europe. Understanding this practice and its impact requires a comprehensive study of the astrological content of South American almanacs, which has yet to be made.
Outside the Spanish publications, most printed works of the seventeenth century omit any astrological geographical associations for the New World. Perhaps there was still some uncertainty about the concepts and methodologies used. It is also unclear what level of influence the South American authors had, if any. Whatever the case, the current scarcity of sources does not allow a complete picture of the development or transmission of this knowledge. There seems to be a lack of a comprehensive astrological geography of the New World, such as the traditional correspondences found in European texts. Only a few territories are mentioned by British authors, mainly those under British rule. Furthermore, the search for these correspondences, as seen in Calancha’s text, appears to have not survived the marginalization of astrology from the accepted sciences by the early eighteenth century, at least in print.
The writings of late seventeenth-century authors appear to present a change of focus in astrological practice. Practitioners were exploring and finding new forms of dealing with the lacunae in the tradition regarding the New World. These methodologies did not rely as much upon astrological geography. This seems to be exemplified in the progressive use of foundation charts of one sort or another for political prognostication, as demonstrated by Calancha’s discussion of the foundation chart of Lima and in the astrological figure for the English conquest of Jamaica offered by Gadbury in his almanac for Jamaica. The foundation of new cities was a novelty in the European context. Although many associations of cities with signs were attributed to foundation horoscopes, these had a mythical status given their antiquity and were, in most cases, speculative. They served to provide an ethnic, social, and political identity to the inhabitants of a town or region, offering an astrological rationale for their customs, history, and culture. Yet, in the case of the New World, the new inflow of foundational data combined with the lack of a tradition could also explain the apparent underdevelopment of this topic across the astrological literature of this period, leading astrologers to rely on alternative methodologies. Yet, astro-geography is still present in the writings of eighteenth-century astrologers such as Sibly, where its use is combined with foundational charts. However, in all cases, no explanation is given for the source of these attributions, and further research is required to attain a clearer view of this process. Figures 9 and 10 combine in a visual form the astro-geographical information provided by all the abovementioned sources, resulting in a first mapping of the astro-geographic attributions for the New World, including some data on the south regions of Africa.
Regarding the sixteenth and seventeenth centuries, more materials will certainly emerge with a systematic study of printed and manuscript sources for this period, especially those in Portuguese, Spanish, Dutch, and English. However, the existing evidence presented here in this first approach to the topic shows astrological geography to be a good example of a process of adapting and transforming traditional practices to account for the new and unprecedented challenges catalysed by early modern globalization.