The Info List - Geographia

--- Advertisement ---

(i) (i) (i) (i) (i)

The _GEOGRAPHY_ (Greek : Γεωγραφικὴ Ὑφήγησις, _Geōgraphikḕ Hyphḗgēsis_, lit. "Geographical Guidance"), also known by its Latin names as the _GEOGRAPHIA_ and the _COSMOGRAPHIA_, is a gazetteer , an atlas , and a treatise on cartography , compiling the geographical knowledge of the 2nd-century Roman Empire
Roman Empire
. Originally written by Claudius Ptolemy in Greek at Alexandria around AD 150, the work was a revision of a now-lost atlas by Marinus of Tyre using additional Roman and Persian gazetteers and new principles. Its translation into Arabic in the 9th century and Latin in 1406 was highly influential on the geographical knowledge and cartographic traditions of the medieval Caliphate
and Renaissance Europe.


* 1 Manuscripts

* 2 Contents

* 2.1 Cartographical treatise * 2.2 Gazetteer * 2.3 Atlas

* 3 History

* 3.1 Antiquity * 3.2 Caliphate
* 3.3 Renaissance * 3.4 Christopher Columbus * 3.5 Early modern Ottoman Empire

* 4 Longitudes error and Earth
size * 5 Gallery * 6 See also * 7 Notes * 8 Citations * 9 References * 10 Further reading

* 11 External links

* 11.1 Primary sources * 11.2 Secondary material


The world map from Codex Vaticanus Urbinas Graecus 82, done according to Ptolemy's 1st projection The world map from Codex Seragliensis 57, done according to Ptolemy's 2nd projection

Versions of Ptolemy's work in antiquity were probably proper atlases with attached maps, although some scholars aver that the references to maps in the text were later additions.

No Greek manuscript of the _Geography_ survives from earlier than the 13th century. A letter written by the Byzantine monk Maximus Planudes records that he searched for one for Chora Monastery in the summer of 1295; one of the earliest surviving texts may have been one of those he then assembled. In Europe, maps were sometimes made redrawn using the coordinates provided by the text, as Planudes was forced to do. Later scribes and publishers could then copy these new maps, as Athanasius did for the emperor Andronicus II Palaeologus . The three earliest surviving texts with maps are those from Constantinople ( Istanbul
) based on Planudes's work.

The first Latin translation of these texts was made in 1406 or 1407 by Jacobus Angelus in Florence , Italy
, under the name _Geographia Claudii Ptolemaei_. It is not thought that his edition had maps, although Manuel Chrysoloras had given Palla Strozzi a Greek copy of Planudes's maps in Florence in 1397.


The _Geography_ consists of three sections, divided among 8 books. Book I is a treatise on cartography , describing the methods used to assemble and arrange Ptolemy's data. From Book II through the beginning of Book VII, a gazetteer provides longitude and latitude values for the world known to the ancient Romans (the "ecumene "). The rest of Book VII provides details on three projections to be used for the construction of a map of the world, varying in complexity and fidelity. Book VIII constitutes an atlas of regional maps. The maps include a recapitulation of some of the values given earlier in the work, which were intended to be used as captions to clarify the map's contents and maintain their accuracy during copying.


Maps based on scientific principles had been made in Europe since the time of Eratosthenes in the 3rd century BC. Ptolemy improved the treatment of map projections . He provided instructions on how to create his maps in the first section of the work.


The gazetteer section of Ptolemy's work provided latitude and longitude coördinates for all the places and geographical features in the work. Latitude was measured from the equator in Africa
but expressed in terms of hours rather than in degrees of arc : the equator was set at 12 hours of midsummer daylight, while the Arctic was thought to have 24. His Prime Meridian ran through the Fortunate Isles , the westernmost land recorded, at around the position of El Hierro in the Canary Islands . The maps spanned 180 degrees of longitude from the Fortunate Isles in the Atlantic to China

Ptolemy was aware that Europe knew only about a quarter of the globe.


Ptolemy's work included a single large and less detailed world map and then separate and more detailed regional maps. The first Greek manuscripts compiled after Maximus Planudes 's rediscovery of the text had as many as 64 regional maps, the standard set in Western Europe came to be 26: 10 European maps, 4 African maps, and 12 Asian maps. As early as the 1420s, these canonical maps were complemented by extra-Ptolemaic regional maps depicting, e.g., Scandinavia .


1st Map of Europe Albion ">

2nd Map of Europe Tarragonese , Baetic , ">

3rd Map of Europe Parisian , Narbonese , ">

4th Map of Europe Greater Germany ">

5th Map of Europe Rhaetia , Vindelicia , Noricum , Pannonia , Illyria
, Liburnia , ">

6th Map of Europe Italy

7th Map of Europe Sardinia ">

8th Map of Europe Sarmatia in Europe *

9th Map of Europe Dacia , Moesia , ">

10th Map of Europe Macedonia , Achaea , the Peloponnesus , ">

1st Map of Africa Tangerine ">

2nd Map of Africa Africa

3rd Map of Africa Cyrenaica , Marmarica , Libya , Lower Egypt , ">

4th Map of Africa Inner Libya ">

1st Map of Asia Bithynia & Pontus , Asia , Lycia , Pamphylia , Galatia , Cappadocia , Cilicia , ">

2nd Map of Asia Asiatic Sarmatia *

3rd Map of Asia Colchis , Iberia , Albania , ">

4th Map of Asia Cyprus Island , Syria , Palestine or Judea , Arabia Petrea & Deserta , Mesopotamia , ">

5th Map of Asia Assyria , Susiana , Media , Persia , Hyrcania , Parthia , ">

6th Map of Asia Arabia Felix ">

7th Map of Asia Scythia within Imaus , Sogdiana , Bactriana , Margiana , ">

8th Map of Asia Scythia beyond Imaus ">

9th Map of Asia Ariana , Drangiana , Gedrosia , Arachosia , ">

10th Map of Asia India within the Ganges *

11th Map of Asia India beyond the Ganges , the Golden Chersonese , the Magnus Sinus , ">

12th Map of Asia Taprobana Island



The original treatise by Marinus of Tyre that formed the basis of Ptolemy's _Geography_ has been completely lost. A world map based on Ptolemy was displayed in Augustodunum ( Autun , France
) in late Roman times. Pappus , writing at Alexandria in the 4th century, produced a commentary on Ptolemy's _Geography_ and used it as the basis of his (now lost) _Chorography of the Ecumene_. Later imperial writers and mathematicians, however, seem to have restricted themselves to commenting on Ptolemy's text, rather than improving upon it; surviving records actually show decreasing fidelity to real position.

Whereas previous Greco-Roman geographers such as Strabo and Pliny the Elder demonstrated a reluctance to rely on the contemporary accounts of sailors and merchants who plied distant areas of the Indian Ocean
Indian Ocean
, Marinus and Ptolemy betray a much greater receptiveness to incorporating information received from them. For instance, Grant Parker argues that it would be highly implausible for them to have constructed the Bay of Bengal as precisely as they did without the accounts of sailors. When it comes to the account of the Golden Chersonese (i.e. Malay Peninsula ) and the _ Magnus Sinus _ (i.e. Gulf of Thailand and South China
Sea ), Marinus and Ptolemy relied on the testimony of a Greek sailor named Alexandros, who claimed to have visited a far eastern site called " Cattigara " (most likely Oc Eo , Vietnam
, the site of unearthed Antonine -era Roman goods and not far from the region of Jiaozhi in northern Vietnam
where ancient Chinese sources claim several Roman embassies first landed in the 2nd and 3rd centuries).


See also: Geography and cartography in medieval Islam The Amir of Bani Bu Ali tribe, the likely "Bliulaie" of Ptolemy's map.

Muslim cartographers were using copies of Ptolemy's _ Almagest _ and _Geography_ by the 9th century. At that time, in the court of the caliph al-Maʾmūm , al-Khwārazmī compiled his _Book of the Depiction of the Earth
_ which mimicked the _Geography_ in providing the coordinates for 545 cities and regional maps of the Nile , the Island of the Jewel , the Sea of Darkness, and the Sea of Azov . A 1037 copy of these are the earliest extant maps from Islamic lands. The text clearly states that al-Khwārazmī was working from an earlier map, although this could not have been an exact copy of Ptolemy's work: his Prime Meridian was 10° east of Ptolemy's, he adds some places, and his latitudes differ. C.A. Nallino suggests that the work was not based on Ptolemy but on a derivative world map, presumably in Syriac or Arabic . The colored map of al-Maʾmūm constructed by a team including al-Khwārazmī was described by the Persian encyclopædist al-Masʿūdī around 956 as superior to the maps of Marinus and Ptolemy, probably indicating that it was built along similar mathematical principles. It included 4530 cities and over 200 mountains.

Despite beginning to compile numerous gazetteers of places and coördinates indebted to Ptolemy, Muslim scholars made almost no direct use of Ptolemy's principles in the maps which have survived. Instead, they followed al-Khwārazmī's modifications and the orthogonal projection advocated by Suhrāb 's early 10th-century treatise on the _Marvels of the Seven Climes to the End of Habitation _. Surviving maps from the medieval period were not done according to mathematical principles. The world map from the 11th-century _Book of Curiosities _ is the earliest surviving map of the Muslim or Christian world to include a graticule but the cartographer seems to have not understood its purpose, starting it from the left using twice the intended scale and then (apparently realizing his mistake) giving up halfway through. Its presence does strongly suggest the existence of earlier, now-lost maps which had been mathematically derived in the manner of Ptolemy, al-Khwārazmi, or Suhrāb. There are surviving reports of such maps.


Further information: Sino-Roman relations , Indo-Roman relations , Europeans in Medieval China
, and Chronology of European exploration of Asia

Ptolemy's text reached Italy
from Constantinople in about 1400 and was translated into Latin by Jacobus Angelus of Scarperia around 1406. The first printed edition with maps, published in 1477 in Bologna
, was also be the first printed book with engraved illustrations. Many editions followed (more often using woodcut in the early days), some following traditional versions of the maps, and others updating them. An edition printed at Ulm in 1482 was the first one printed north of the Alps
. Also in 1482, Francesco Berlinghieri printed the first edition in vernacular Italian . Edition printed in Ulm in 1482

Ptolemy had mapped the whole world from the _Fortunatae Insulae_ ( Cape Verde or Canary Islands ) eastward to the eastern shore of the _Magnus Sinus_. This known portion of the world was comprised within 180 degrees. In his extreme east Ptolemy placed _Serica_ (the Land of Silk), the _Sinarum Situs_ (the Port of the Sinae ), and the emporium of _ Cattigara _. On the 1489 map of the world by Henricus Martellus, which was based on Ptolemy’s work, Asia terminated in its southeastern point in a cape, the Cape of Cattigara. Cattigara was understood by Ptolemy to be a port on the _Sinus Magnus,_ or Great Gulf, the actual Gulf of Thailand, at eight and a half degrees north of the Equator, on the coast of Cambodia, which is where he located it in his Canon of Famous Cities . It was the easternmost port reached by shipping trading from the Graeco-Roman world to the lands of the Far East. In Ptolemy’s later and more well-known Geography, a scribal error was made and Cattigara was located at eight and a half degrees South of the Equator. On Ptolemaic maps, such as that of Martellus, _Catigara_ was located on the easternmost shore of the _Mare Indicum,_ 180 degrees East of the Cape St Vincent at, due to the scribal error, eight and a half degrees South of the Equator.

_Catigara_ is also shown at this location on Martin Waldseemueller’s 1507 world map, which avowedly followed the tradition of Ptolemy. Ptolemy’s information was thereby misinterpreted so that the coast of China, which should have been represented as part of the coast of eastern Asia, was falsely made to represent an eastern shore of the Indian Ocean. As a result, Ptolemy implied more land east of the 180th meridian and an ocean beyond. Marco Polo ’s account of his travels in eastern Asia described lands and seaports on an eastern ocean apparently unknown to Ptolemy. Marco Polo’s narrative authorized the extensive additions to the Ptolemaic map shown on the 1492 globe of Martin Behaim . The fact that Ptolemy did not represent an eastern coast of Asia made it admissible for Behaim to extend that continent far to the east. Behaim’s globe placed Marco Polo’s Mangi and Cathay east of Ptolemy’s 180th meridian, and the Great Khan’s capital, _Cambaluc_ ( Beijing
), on the 41st parallel of latitude at approximately 233 degrees East. Behaim allowed 60 degrees beyond Ptolemy’s 180 degrees for the mainland of Asia and 30 degrees more to the east coast of _ Cipangu _ (Japan). Cipangu and the mainland of Asia were thus placed only 90 and 120 degrees, respectively, west of the Canary Islands.

The Codex Seragliensis was used as the base of a new edition of the work in 2006. This new edition was used to "decode" Ptolemy's coordinates of Books 2 and 3 by an interdisciplinary team of TU Berlin , presented in publications in 2010 and 2012.

Relevant research on Ptolemy's _Geography_ manuscripts and printed editions, concerning the _Geography_ versions coordinates, has been carried out since 1998 by members of the cartography group, school of surveying engineering, at the Aristotle University of Thessaloniki. See, e.g. selective papers in the web journal "e-Perimetron"


Christopher Columbus modified this geography further by using 53⅔ Italian nautical miles as the length of a degree instead of the longer degree of Ptolemy, and by adopting Marinus of Tyre ’s longitude of 225 degrees for the east coast of the _ Magnus Sinus _. This resulted in a considerable eastward advancement of the longitudes given by Martin Behaim and other contemporaries of Columbus. By some process Columbus reasoned that the longitudes of eastern Asia and Cipangu respectively were about 270 and 300 degrees east, or 90 and 60 degrees west of the Canary Islands . He said that he had sailed 1100 leagues from the Canaries when he found Cuba
in 1492. This was approximately where he thought the coast of eastern Asia would be found. On this basis of calculation he identified Hispaniola with Cipangu, which he had expected to find on the outward voyage at a distance of about 700 leagues from the Canaries. His later voyages resulted in further exploration of Cuba
and in the discovery of South and Central America . At first South America, the _Mundus Novus_ ( New World ) was considered to be a great island of continental proportions; but as a result of his fourth voyage , it was apparently considered to be identical with the great Upper India peninsula ( India Superior ) represented by Behaim—the Cape of Cattigara. This seems to be the best interpretation of the sketch map made by Alessandro Zorzi on the advice of Bartholomew Columbus (Christopher’s brother) around 1506, which bears an inscription saying that according to the ancient geographer Marinus of Tyre and Christopher Columbus the distance from Cape St Vincent on the coast of Portugal to Cattigara on the peninsula of India Superior was 225 degrees, while according to Ptolemy the same distance was 180 degrees.


Prior to the 16th century knowledge of geography in the Ottoman Empire was limited in scope, with almost no access to the works of earlier Islamic scholars that superseded Ptolemy. His Geography would again be translated and updated with commentary into Arabic under Mehmed II , who commissioned works from Byzantine scholar George Amiroutzes in 1465 and the Florentine humanist Francesco Berlinghieri in 1481.


Italian scholar Lucio Russo points out two apparently distinct errors:

* considering a sample of 80 cities amongst the 6345 listed by Ptolemy, those that are both identifiable and for which we can expect a better distance measurement since they were well known, there is a systematic overestimation of the longitude by a factor 1.428 with a high confidence (coefficient of determination r² = 0.9935). This error produces an evident deformations in Ptolemy's world map most apparent for exampled in the profile of Italy
, which is markedly stretched horizontally; * Ptolemy accepted that the known Ecumene spanned 180° of longitude, but instead of accepting Eratosthenes estimate for the circumference of the Earth
of 252,000 stadia, he shrinks it to 180,000 stadia, with a factor of 1.4 between the two figures.

Ptolemy took as location for the longitude 0° the Fortunate Isles which at his times were identified with the Canary Islands . The strange coincidence of the two aforementioned errors may be accounted for if one assumes that this identification was wrong and that at the time of Ptolemy's sources the Fortunate Isles where actually the eastern Antilles . Since Ptolemy could estimate the actual distance to the Canaries, Russo proposes that he purposely shrank the circumference of Earth
to accommodate his data and his wrong identification of the Fortunate Isles. This suggests or even proves that the American continent was known in Classical Antiquity .



The Ptolemy world map , including the countries of " Serica " and "Sinae" ( Cattigara ) at the extreme right beyond the island of "Taprobane" ( Sri Lanka ) and the "Aurea Chersonesus" (Malay peninsula ). *

Codex Seragliensis GI 57, fol. 33v *

Scandinavia in the Zamoyski Codex (c. 1467) *

1535 printed edition, title page *

19th-century print in Greek (3 volumes) *

_Prima Europe tabula_ One of the earliest surviving copies of Ptolemy's 2nd century map of the British Isles. 2nd edition, 1482.


* Atlas portal

* Almagest , Ptolemy's astronomical work * Bibliotheca historica * Diodorus Siculus * Geography and cartography in medieval Islam * Strabo


* ^ They are the Urbanas Graecus 82 , the Fragmentum Fabricianum Graecum 23 , and the Seragliensis 57 The Urbanas Graecus is usually considered the oldest, although some argue for the precedence of the Turkish manuscript. * ^ For example, the illustrations for Burney MS 111, most of which were inserted into an earlier copy of the _Geography_ during the early 15th century.


* ^ Berggren (2001) . * ^ Dilkeb (1987) , pp. 267–268. * ^ _A_ _B_ Dilkeb (1987) , p. 268. * ^ Biblioteca Apostolica Vaticana . Vat. Gr. 177. Late 13th century * ^ Milanesi (1996) . * ^ Dilke (1987b) , p. 268. * ^ Biblioteca Apostolica Vaticana . Urbinas Graecus 82. Late 13th century * ^ Universitetsbiblioteket . Fragmentum Fabricianum Graecum 23. Late 13th century * ^ The Sultan's Library in Istanbul. Codex Seragliensis GI 57. Late 13th century * ^ Dilke (1987b) , p. 269. * ^ Diller (1940) . * ^ _A_ _B_ Stückelberger (2006) . * ^ _A_ _B_ Angelus (c. 1406) . * ^ Clemens (2008) , p. 244. * ^ Wright (1923) . * ^ Images from Burney MS 111 at Wikicommons. * ^ _A_ _B_ Dilke (1987a) , p. 234. * ^ _A_ _B_ Parker (2008) , p. 118. * ^ Young (2001) , p. 29. * ^ Mawer (2013) , p. 38. * ^ Suárez (1999) , p. 90-92. * ^ Yule (1915) , p. 52. * ^ _A_ _B_ Edson (2004) , pp. 61–62. * ^ _A_ _B_ _C_ _D_ Rapoport (2008) , p. 128. * ^ _A_ _B_ Rapoport (2008) , p. 127. * ^ Nallino (1939) . * ^ al-Masʿūdī , 33. * ^ Rapoport (2008) , p. 130. * ^ _A_ _B_ Rapoport (2008) , p. 129. * ^ Rapoport (2008) , p. 126–127. * ^ Landau, David, and Parshall, Peter. _The Renaissance Print_, Yale, 1996, p. 241, ISBN 0300068832 ; Crone, G.R., review of _Theatrum Orbis Terrarum. A Series of Atlases in Facsimile_, _The Geographical Journal_, Vol. 130, No. 4 (Dec., 1964), pp. 577-578, Published by: The Royal Geographical Society (with the Institute of British Geographers), Article DOI: 10.2307/1792324, JSTOR * ^ David Landau & Peter Parshall, The Renaissance Print, pp 241-2, Yale, 1996, ISBN 0-300-06883-2 * ^ Dennis Rawlins, "The Ptolemy GEOGRAPHY's Secrets", DIO - The International Journal of Scientific History, Vol. 14, March 2008 . * ^ See Oc Eo . * ^ J.W. McCrindle, _Ancient India as described by Ptolemy,_ London, Trubner, 1885, revised edition by Ramachandra Jain, New Delhi, Today & Tomorrow’s Printers Albert Herrmann, “Der Magnus Sinus und Cattigara nach Ptolemaeus”, _Comptes Rendus du 15me Congrès International de Géographie,_ Amsterdam, 1938, Leiden, Brill, 1938, tome II, sect. IV, Géographie Historique et Histoire de la Géographie, pp.123-8. * ^ Paul Schnabel, „Die Entstehungsgeschichte des kartographischen Erdbildes des Klaudios Ptolemaios“, _Sitzungsberichte der Preussischen Akademie der Wissenschaften: Philosophisch-Historische Klasse, Verlag der Akademie der Wissenschaften,_ Bd.XIV, 1930, S.214-250, n.b. 239-243; cited in Albert Herrmann, “South- Eastern Asia
Eastern Asia
on Ptolemy’s Map”, _Research and Progress: Quarterly Review of German Science,_ vol.V, no.2, March–April 1939, pp.121-127, p.123. * ^ See Waldseemuller Map * ^ Andreas Kleineberg, Christian Marx, Eberhard Knobloch, Dieter Lelgemann, _Germania und die Insel Thule. Die Entschlüsselung von Ptolemaios´ „Atlas der Oikumene“_. Wissenschaftliche Buchgesellschaft, Darmstadt, 2010, ISBN 978-3-534-23757-9 . * ^ Andreas Kleineberg, Christian Marx, Dieter Lelgemann, _Europa in der Geographie des Ptolemaios. Die Entschlüsselung des „Atlas Oikumene“: Zwischen Orkney, Gibraltar und den Dinariden_. Wissenschaftliche Buchgesellschaft, Darmstadt, 2010, ISBN 978-3-534-24835-3 . * ^ Christian Marx, Andreas Kleineberg, _Die Geographie des Ptolemaios. Geographike Hyphegesis Buch 3: Europa zwischen Newa, Don und Mittelmeer_. epubli, Berlin, 2012, ISBN 978-3-8442-2809-0 . * ^ “Alberico”, vol.IV, c. 169, Florence, Biblioteca Nazionale Centrale, Banco Rari 234; Sebastian Crino, "Schizzi cartografici inediti dei primi anni della scoperta dell' America", _Rivista marittima_, vol. LXIV, no.9, Supplemento, Novembre 1930, p.48, fig.18. Downloadable at: www.henry-davis.com/MAPS/Ren/Ren1/304.1.html * ^ The Ottoman 'Discovery' of the Indian Ocean
Indian Ocean
in the Sixteenth Century: The Age of Exploration from an Islamic Perspective, Giancarlo Casale, 2003 http://webdoc.sub.gwdg.de/ebook/p/2005/history_cooperative/www.historycooperative.org/proceedings/seascapes/casale.html#_ftnref25 * ^ Trading Territories: Mapping the Early Modern World, Jerry Brotton, p.101 http://librarun.org/book/53582/101 * ^ Lucio Russo. PTOLEMY’S LONGITUDES AND ERATOSTHENES’ MEASUREMENT OF THE EARTH’S CIRCUMFERENCE. 2012. dx.doi.org/10.2140/memocs.2013.1.67 http://msp.org/memocs/2013/1-1/memocs-v1-n1-p04-s.pdf * ^ Lucio Russo. Far-reaching Hellenistic geographical knowledge hidden in Ptolemy’s data. 2016. https://hal.archives-ouvertes.fr/hal-01275282/document * ^ Lucio Russo (2013). _L'America dimenticata: I rapporti tra civiltà e un errore di Tolomeo_. Milano: Mondadory Education s.p.a. ISBN 8861843204 .


* Ptolemy. Translated by Jacobus Angelus (c. 1406), _Geographia_ . (in Latin) * Berggren, J. Lennart & al. (2001), _Ptolemy's Geography by Ptolemy_, Princeton: Princeton University Press, ISBN 0-691-09259-1 . * Clemens, Raymond (2008), "Medieval Maps in a Renaissance Context: Gregorio Dati", in Talbert, Richard J.A.; Unger, Richard Watson, _ Cartography in Antiquity and the Middle Ages: Fresh Perspectives, New Methods_, Leiden: Koninklijke Brill NV, pp. 237–256 * Dilke, Oswald Ashton Wentworth (1987a), "14 · Itineraries and Geographical Maps in the Early and Late Roman Empires" (PDF), _History of Cartography_, I, Chicago: University of Chicago Press, pp. 234–257 . * Dilke, Oswald Ashton Wentworth (1987b), "15 ·  Cartography in the Byzantine Empire" (PDF), _History of Cartography_, I, Chicago: University of Chicago Press, pp. 258–275 . * Diller, Aubrey (1940), "The Oldest Manuscripts of Ptolemaic Maps", _Transactions of the American Philological Association_ (71), pp. 62–67 . * Edson, Evelyn & al. (2004), _Medieval Views of the Cosmos_, Oxford: Bodleian Library, ISBN 1-85124-184-1 . * al-Masʿūdī (1894), "Kitāb al-Tanbīh wa-al-ishrāf", _Bibliotheca Geographorum Arabicorum_, 8, Leiden: Brill . * Mawer, Granville Allen (2013). "The Riddle of Cattigara". In Nichols, Robert and Martin Woods. _Mapping Our World: Terra Incognita to Australia_. National Library of Australia. pp. 38–39. ISBN 9780642278098 . * Milanesi, Marica (1996), "A Forgotten Ptolemy: Harley Codex 3686 in the British Library", _ Imago Mundi _, 48, pp. 43–64, doi :10.1080/03085699608592832 . * Nallino, C.A. (1939), "Al-Ḥuwārismī e il suo rifacimento della Geografia di Tolomeo", _Raccolta di scritti editi e inediti_, V, Rome: Istituto per l'Oriente, pp. 458–532 . (in Italian) * Parker, Grant (2008). _The Making of Roman India_. Cambridge University Press. ISBN 978-0-521-85834-2 . * Rapoport, Yossef; et al. (2008), "The _Book of Curiosities_ and a Unique Map of the World", _ Cartography in Antiquity and the Middle Ages: Fresh Perspectives, New Methods_, Leiden: Koninklijke Brill NV, pp. 121–138 . * Stückelberger, Alfred & al., eds. (2006), _Ptolemaios Handbuch der Geographie (Griechisch-Deutsch)_ , ISBN 3-7965-2148-7 . (in German) & (in Greek) * Suárez, Thomas (1999), _Early Mapping of Southeast Asia_, Periplus Editions, ISBN 962-593-470-7 . * Wright, John Kirtland (1923), "Notes on the Knowledge of Latitudes and Longitudes in the Middle Ages", _Isis_, V (1), pp. 75–98, JSTOR 223599 , doi :10.1086/358121 . * Young, Gary Keith (2001). _Rome's Eastern Trade: International Commerce and Imperial Policy, 31 BC-AD 305_. Routledge. ISBN 0-415-24219-3 . * Yule, Henry (1915). Henri Cordier, ed. _ Cathay and the Way Thither: Being a Collection of Medieval Notices of China, Vol I: Preliminary Essay on the Intercourse Between China
and the Western Nations Previous to the Discovery of the Cape Route_. 1. Hakluyt Society.


* Berggren, J. Lennart and Jones, Alexander. 2000. _Ptolemy's_ Geography: _An Annotated Translation of the Theoretical Chapters_. Princeton University Press. Princeton and Oxford. ISBN 0-691-01042-0 . * Cosgrove, Dennis. 2003. _Apollo's Eye: A Cartographic Genealogy of the Earth
in the Western Imagination_. Johns Hopkins University Press. Baltimore and London. * Gautier Dalché, Patrick. 2009. _La Géographie de Ptolémée en Occident (IVe-XVIe siècle)_. Terratum Orbis. Turnhout. Brepols, . * Shalev, Zur, and Charles Burnett, eds. 2011. _Ptolemy's_ Geography _in the Renaissance_. London; Turin. Warburg Institute; Nino Aragno. (In Appendix: Latin text of Jacopo Angeli's introduction to his translation of the _Geography_, with English translation by C. Burnett.) * Stevenson, Edward Luther. Trans. and ed. 1932. _Claudius Ptolemy: The Geography_. New York Public Library. Reprint: Dover, 1991. This is the only complete English translation of Ptolemy's most famous work. Unfortunately, it is marred by