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Cantino planisphere

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Title: Cantino planisphere  
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Subject: Age of Discovery, Spanish Florida, Portuguese Renaissance, Treaty of Tordesillas, Dragon's Tail (peninsula)
Collection: 1502 Works, Old Maps of the World
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Cantino planisphere

Cantino planisphere (1502), Biblioteca Estense, Modena, Italy

The Cantino planisphere or world map is the earliest surviving map showing Portuguese geographic discoveries in the east and west. It is named after Alberto Cantino, an agent for the Duke of Ferrara, who successfully smuggled it from Portugal to Italy in 1502. The map is particularly notable for portraying a fragmentary record of the Brazilian coast, discovered in 1500 by the Portuguese explorer Pedro Álvares Cabral, and for depicting the African coast of the Atlantic and Indian Oceans with a remarkable accuracy and detail. It was valuable at the beginning of the sixteenth century because it showed detailed and up-to-date strategic information in a time when geographic knowledge of the world was growing at a fast pace. It is important in our days because it contains unique historical information about the maritime exploration and the evolution of nautical cartography in a particularly interesting period. The Cantino planisphere is the earliest extant nautical chart where places (in Africa and parts of Brazil and India) are depicted according to their astronomically observed latitudes.


  • History 1
  • Construction 2
  • Discoveries 3
  • North American section 4
  • See also 5
  • Notes 6
  • Bibliography and references 7
  • External links 8


West and the recently reached Americas, Tordesillas line depicted - Cantino planisphere detail
Major wind rose of the Cantino planisphere

In the beginning of the 16th century, Lisbon was a buzzing metropolis where people from diverse backgrounds came in search of work, glory or fortune. There were also many undercover agents looking for the secrets brought by the Portuguese voyages to remote lands. Among them was Alberto Cantino, who was sent to Portugal by the Ercole I d'Este, Duke of Ferrara, with the formal intention of horse trading, while secretly collecting information on the Portuguese Discoveries. Cantino’s diligence is shown in two of his letters to the Duke, dated from 17th and 18 October 1501, where he describes, amongst other things, hearing Gaspar Corte-Real detailing his latest voyage to Newfoundland (Terra Nova) to King Manuel I of Portugal.

A popular theory, introduced in the earliest studies of the map,[1] suggests that the Cantino Planisphere was ordered to an official Portuguese mapmaker, who made a copy of the royal cartographic pattern, the so-called Padrão Real, kept in the Armazéns da Índia. However, there is no historical evidence that such order was ever made and the theory is weakened by the presence of numerous mistakes. One would expect a carefully made copy of an official standard, if it existed in Portugal at that time, would be accurate.[2] A more plausible explanation is that the map was surreptitiously acquired shortly after it was made for some nobleman or official client.[3] From a letter sent by Cantino to its patron, the Duke of Ferrara, on the 19th of November 1502, we know that he paid 12 golden ducats for it, which was a considerable amount for the time. An Italian inscription in the back of the map reads: Carta de navigar per le Isole nouam trovate in le parte de India: dono Alberto Cantino al S. Duca Hercole, which translates as 'Navigational chart of the islands recently [discovered]... in part of the Indies: from Alberto Cantino to Duke Hercole'.

While it enlightened the Italians to many new territories yet unknown to them, it was obsolete within months due to subsequent mapping voyages by the Portuguese. Nevertheless, its importance to the Portuguese–Italian trade relations should not be understated; this map provided the Italians with knowledge of Brazil's coastline and that of much of the Atlantic Coast of South America long before other nations even knew South America extended so far to the south. It also supplied great details of the Indian Ocean. It also maps the east coast of North America, at least from Florida to New York, and includes descriptive place names such as Rio de las Almadias (River of Rafts), which describes the unique vegetation rafts in the St. Johns River in Florida. Others argue that this peninsula was actually intended to represent part of China, Cuba, or the Yucatan Peninsula.[4]

The geographical information given on the Cantino map was copied into the Italian-made Canerio (or Caveri) map shortly after the Cantino map arrived in Italy and the Canerio, in turn, became the primary source for the design of the newly discovered western lands on the highly influential wall map of the world produced by Martin Waldseemüller in 1507 under the auspices of Rene, Duke of Lorraine.

This old map, made-up by 6 glued parchment sheets, was kept in the Ducal Library, Ferrara, for about 90 years, until Pope Clement VIII transferred it to another palace in Modena, Italy. More than two centuries later, in 1859, the palace was ransacked and the Cantino Map lost. It was found by Giuseppe Boni, Director of the Biblioteca Estense, in that same year, in a butcher’s store in Modena. The Cantino world map can currently be found in Modena, Italy, at the Biblioteca Estense.


The rhumb-line construction scheme and geographic lines in the Cantino planisphere. Adapted from Gaspar (2012), Plate 3

The Cantino planisphere is the earliest extant example of the so-called latitude chart, which was developed following the introduction of astronomical navigation, during the second half of the fifteenth century. Contrarily to the portolan charts of the Mediterranean, which were constructed on the basis of magnetic courses and estimated distances between places, in the latitude chart places were represented according to their latitudes. In the Cantino planisphere, latitudes were incorporated only in the coasts of Africa, Brazil and India, while Europe and the Caribbean Sea continued to be represented according to the portolan-chart model [5]).

The construction of the rhumb line system in the Cantino planisphere uses two circles (some charts use only one, others use as many as three, depending of size): the western circle is centered on the Cape Vert Islands, the eastern circle is centered in India. The circumference of each circle is marked with sixteen equally spaced points, from which radiate the 32 classic rhumbs: 0°, 11 1/4°, 22 1/2°, 33 3/4°, etc. The western and eastern outer circles are tangent to each other at a large wind-rose in central Africa, with a fleur-de-lis indicating North. This dense rhumb-line mesh was used in navigation as a reference, for reading and marking directions (courses) between places. Six scale bars graduated in Iberian leagues, with a variable number of sections (or logs), are distributed over the chart's area. These were used to measure distances between places.

Illustrations are few, but elaborate. Two cities are grandly depicted - Elmina Castle, on the Gold Coast of west Africa), flanked by two African towns. Other illustrations include a lion-shaped mountain representing the Sierra Leone mountain range, the Alexandria lighthouse (laid horizontal), the mythical Mountains of the Moon (legendary source of the Nile River) in central Africa, and either the Table Mountain or Drakensberg range in South Africa. Along the central African coast are the various cross stone markers (padrões) erected by Diogo Cão and Bartolomeu Dias in the 1480s.

In north Africa, there is the "Montes Claros" in the usual place of the Prester John and is a moor and a great enemy of Christians".


The Brazilian coast was certainly the last to be added and reached its present form in three phases: to the first belong an initial coastline running to southeast from Golfo fremosso to Cabo Sam Jorge, and from there, to north of Porto Seguro, continuing further south to the tip of the landmass. Only a relatively small portion of the coast, between the flag near the Vera cruz inscription and the northern side of the baia de todos os santos would have been surveyed, in 1500, by the fleet of Pedro Álvares Cabral. To the second phase belongs the pasting of the strip of parchment between Rio de sã franc° and Golfo fremosso, which would have been based on the information brought by the fleet of João da Nova, who arrived in Lisbon in September 1502. In the third phase the island named quaresma, together with some names written in cursive would have been added .[6]

Greenland is supposed to have been re-discovered by João Fernandes Labrador and Pedro de Barcelos between 1495 and 1498, and also visited by Giovanni Caboto (John Cabot), in the English expedition of 1498. But the depiction of the island on the map suggests it was based on the Portuguese mission of Labrador and Barcelos. Newfoundland was probably visited by an English expedition in 1497-98, and again, by the Portuguese explorer Gaspar Corte-Real in 1500 and 1501. The map makes clear that the land was discovered and charted for Portugal by Gaspar Corte-Real, for King Manuel I of Portugal.

North American section

Top left corner section of 1502 Cantino map, which shows US East Coast, Cuba, Hispaniola, and other Caribbean Islands
A depiction of what might be Florida from the 1502 Cantino map

The North American section of the Cantino map is historically very important. It represents one of the very first mappings of America's East Coast, and includes descriptive place names. It may map both coasts of Florida, and 11 years before Ponce de León got credit for discovering Florida in 1513. Other suggestions include the possibility it reflects the belief that Columbus reached Asia and it is meant to show the mainland of Asia or that it represents Yucatán.[7]

Newfoundland, which was visited in 1500 and 1501 by Gaspar Corte-Real and his brother Miguel, members of the Portuguese royal household, is labeled as Terra del Rey de Portuguall on the Cantino map. [8]

See also


  1. ^ Duarte Leite (1923), 225-32
  2. ^ Gaspar (2012), 181-82
  3. ^ Gaspar (2010), 182; 195
  4. ^ Peck, Douglas T. (2003). "THE FIRST EUROPEAN CHARTING OF FLORIDA AND THE ADJACENT SHORES". The Florida Geographer 34: 82–113. 
  5. ^ Gaspar (2012), 129-82
  6. ^ Roukema (1963), p. 7-8
  7. ^ Allen, John Logan (1997). A New World Disclosed. University of Nebraska Press. p. 198.  
  8. ^

Bibliography and references

  • Gaspar, Joaquim A. (2010) From the Portolan Chart of the Mediterranean to the Latitude Chart of the Atlantic: Cartometric Analysis and Modelling. Doctoral thesis. ISEGI, Universidade Nova de Lisboa [5]
  • Gaspar, Joaquim A. (2012) 'Blunders, Errors and Entanglements: Scrutining the Cantino planisphere with a Cartometric Eye', Imago Mundi, Vol. 64, Part 2: 181-200 [6]
  • Harisse, Henry (1883) Les Corte-Real e leurs voyages au Nouveau Monde. Paris [7]
  • Harisse, Henry (1892) The Discovery of North America: a Critical, Documentary, and Historic Investigation. London: Henry Stevens and Son; Paris: H. Welter. [8]
  • Leite, Duarte (1923) 'O mais antigo mapa do Brasil', in História da Colonização Portuguesa do Brasil, vol. II, p. 223–81. Porto: Litografia Nacional
  • Mota, Avelino Teixeira da (1977) A África no Planisfério Português Anónimo "Cantino" (1502). Centro de Estudos de Cartografia Antiga, Separate CII. Lisboa: Junta de Investigações do Ultramar.
  • Pereira, Moacyr (1994) 'O Novo Mundo no Planisfério da Casa de Este, o "Cantino" '. Revista do Instituto Histórico e Geográfico Brasileiro, 155 (384), p. 680–718.
  • Roukema, E. (1963) 'Brazil in the Cantino Map', Imago Mundi, Vol. 17, p. 7–26

External links

  • Carta del Cantino, PDF from the site of Biblioteca Estense, Modena
  • Carta del Cantino, Cantino planisphere image, zoomable to very high resolution, at Bibliothèque et Archives nationales du Québec. (Click on 1:1 button to get maximum resolution. Click on Image plein écran to get full-screen view.) (French)
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