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Bianco World Map
The Bianco World Map is a map created by '' Andrea Bianco'', a 15th-century Venetian sailor and cartographer who resided on Chios. This map was a large piece of a nautical atlas including ten pages made of vellum (each measuring 26 × 38 cm). These vellum pages were previously held in an 18th-century binding, but the current owner, Venetian library Biblioteca Marciana, separated the pages for individual exhibition. To confirm his authorship of the atlas, Bianco added to the first page a signature flag with the text "Andreas Biancho de Veneciis me fecit M cccc xxx vj". Roughly translated, this reads "Made by me Andreas Biancho in Venice, 1436." Andrea Bianco also collaborated with Fra Mauro on the Fra Mauro world map of 1459. Content The first page, or ''Tavola 1'', shows a diagram of the '' Raxon or Toleta of Marteloio'', a navigational technique that enabled sailors to calculate how to return to their intended course after being blown off-course. The next eight p ...
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Rule Of Marteloio
image:Tondo e quadro (Bianco, 1436).jpg, 300px, The ''tondo e quadro'' (circle and square) from Andrea Bianco (cartographer), Andrea Bianco's Bianco world map, 1436 atlas The rule of marteloio is a Middle Ages, medieval technique of navigational computation that uses compass direction, distance and a simple Trigonometry, trigonometric table known as the ''toleta de marteloio''. The rule told sailor, mariners how to plot the traverse between two different navigation Course (navigation), courses by means of resolving triangles with the help of the ''Toleta'' and basic arithmetic. Those uncomfortable with manipulating numbers could resort to the visual ''tondo e quadro'' (circle-and-square) and achieve their answer with dividers. The rule of marteloio was commonly used by Mediterranean navigators during the 14th and 15th centuries, before the development of celestial navigation, astronomical navigation. Etymology The etymology comes from the Venetian language. In his 1436 atlas, Ve ...
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1436 Works
Year 1436 ( MCDXXXVI) was a leap year starting on Sunday of the Julian calendar. Events January–March * January 11 – Eric of Pomerania is deposed from the Swedish throne for the second time, only three months after having been reinstated. Engelbrekt Engelbrektsson remains the leader of the land, in his capacity of ''rikshövitsman'', the military commander of the realm. * February 14 – In Yemen, the Imam Al-Mansur Ali bin Salah ad-Din of the Zaidi state, becomes of one of the victims of a plague sweeping the kingdom. His son, an-Nasir Muhammad, becomes the new Imam but dies four weeks later. * February – Karl Knutsson Bonde becomes the Rikshövitsman of the Swedish military jointly with Engelbrekt. The two will share the title until Engelbrekt's death two months later. * March 21 – Italian archaeologist Ciriaco Pizzecolli, exploring at the Greek village of Kastri) rediscovers the site of Delphi, eight centuries after it had been abandoned ...
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Historic Maps Of The World
History is the systematic study of the past, focusing primarily on the human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some theorists categorize history as a social science, while others see it as part of the humanities or consider it a hybrid discipline. Similar debates surround the purpose of history—for example, whether its main aim is theoretical, to uncover the truth, or practical, to learn lessons from the past. In a more general sense, the term ''history'' refers not to an academic field but to the past itself, times in the past, or to individual texts about the past. Historical research relies on primary and secondary sources to reconstruct past events and validate interpretations. Source criticism is used to evaluate these sources, assessing their authenticity, content, and reliability. Historians strive to integrate the perspectives of several sources to develop a ...
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Ancient World Maps
The earliest known world maps date to classical antiquity, the oldest examples of the 6th to 5th centuries BCE still based on the flat Earth paradigm. World maps assuming a spherical Earth first appear in the Hellenistic period. The developments of Greek geography during this time, notably by Eratosthenes and Posidonius culminated in the Roman era, with Ptolemy's world map (2nd century CE), which would remain authoritative throughout the Middle Ages. Since Ptolemy, knowledge of the approximate size of the Earth allowed cartographers to estimate the extent of their geographical knowledge, and to indicate parts of the planet known to exist but not yet explored as ''terra incognita''. With the Age of Discovery, during the 15th to 18th centuries, world maps became increasingly accurate; exploration of Antarctica, Australia, and the interior of Africa by western mapmakers was left to the 19th and early 20th century. Antiquity Bronze Age Saint-Bélec slab The Saint-Bélec slab ...
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Ptolemy
Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzantine, Islamic science, Islamic, and Science in the Renaissance, Western European science. The first was his astronomical treatise now known as the ''Almagest'', originally entitled ' (, ', ). The second is the ''Geography (Ptolemy), Geography'', which is a thorough discussion on maps and the geographic knowledge of the Greco-Roman world. The third is the astrological treatise in which he attempted to adapt horoscopic astrology to the Aristotelian physics, Aristotelian natural philosophy of his day. This is sometimes known as the ' (, 'On the Effects') but more commonly known as the ' (from the Koine Greek meaning 'four books'; ). The Catholic Church promoted his work, which included the only mathematically sound geocentric model of the Sola ...
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Ptolemaic World Map
The Ptolemy world map is a map of the world known to Greco-Roman societies in the 2nd century. It is based on the description contained in Ptolemy's book ''Geography'', written . Based on an inscription in several of the earliest surviving manuscripts, it is traditionally credited to Agathodaemon of Alexandria. Notable features of Ptolemy's map is the first use of longitudinal and latitudinal lines as well as specifying terrestrial locations by celestial observations. The ''Geography'' was translated from Greek into Arabic in the 9th century and played a role in the work of al-Khwārizmī before lapsing into obscurity. The idea of a global coordinate system revolutionized European geographical thought, however, and inspired more mathematical treatment of cartography. Ptolemy's work probably originally came with maps, but none have been discovered. Instead, the present form of the map was reconstructed from Ptolemy's coordinates by Byzantine monks under the direction of Maximus ...
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Portolan Charts
Portolan charts are nautical charts, first made in the 13th century in the Mediterranean basin and later expanded to include other regions. The word ''portolan'' comes from the Italian ''portolano'', meaning "related to ports or harbors", and which since at least the 17th century designates "a collection of sailing directions". Definition The term "portolan chart" was coined in the 1890s because at the time it was assumed that these maps were related to portolani, medieval or early modern books of sailing directions. Other names that have been proposed include rhumb line charts, compass charts or loxodromic charts whereas modern French scholars prefer to call them nautical charts to avoid any relationship with portolani. Several definitions of portolan chart coexist in the literature. A narrow definition includes only medieval or, at the latest, early modern sea charts (i.e. maps that primarily cover maritime rather than inland regions) that include a network of rhumb lin ...
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Fra Mauro Map
The Fra Mauro map is a World map, map of the world made around 1450 by the Italian (Republic of Venice, Venetian) cartographer Fra Mauro, which is “considered the greatest memorial of medieval cartography." It is a circular planisphere drawn on parchment and set in a wooden frame that measures over two by two meters. Including Asia, the Indian Ocean, Africa, Europe, and the Atlantic, it is orientated with south at the top. The map is usually on display in the Biblioteca Nazionale Marciana in Venice in Italy. The Fra Mauro world map is a major cartographical work. It took several years to complete and was very expensive to produce. The map contains hundreds of detailed illustrations and more than 3000 descriptive texts. It was the most detailed and accurate representation of the world that had been produced up until that time. As such, the Fra Mauro map is considered one of the most important works in the history of cartography. According to Jerry Brotton, it marked "the beginning ...
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Andrea Bianco (cartographer)
Andrea Bianco (15th century, Venice — 15th century, Venice) was an Italian navigator and cartographer who resided on Chios. Andrea Bianco was a Venetian whose activities can be traced from 1436 to 1459. He is the author of both the Bianco world map (in 1436), in the Biblioteca Marciana, and another Portolan map in 1448, consisting of two parts, kept in the Biblioteca Ambrosiana. The indication of a year was not the rule on maps in this period. However, the latter dating is considered certain, as he states on this map that he drew it in London in that year.Günther Hamann, Johannes Dörflinger: Die Welt begreifen und erfahren: Aufsätze zur Wissenschafts- und Entdeckungsgeschichte. In: Johannes Dörflinger (Hrsg.): Perspektiven der Wissenschaftsgeschichte. Band 1. Böhlau Verlag, Wien 1993, ISBN 3-205-98041-7, S. 97 (eingeschränkte Vorschau in der Google-Buchsuche). The ''Bianco World Map'' is part of an atlas whose ten pages are made of vellum, measuring 29 × 38 cm. It is ...
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Fra Mauro
Fra Mauro, O.S.B. Cam., (c.1400–1464) was an Italian ( Venetian) cartographer who lived in the Republic of Venice. He created the most detailed and accurate map of the world up until that time, the Fra Mauro map. Mauro was a monk of the Camaldolese Monastery of St. Michael, located on the island of Murano in the Venetian Lagoon. It was there that he maintained a cartography workshop. He also was employed by some very powerful men like Prince Henry the Navigator. Biography Fra Mauro was born before or around the year 1400. In his youth, Mauro had traveled extensively as a merchant and a soldier. He was familiar with the Middle East. He is recorded in the records of the Monastery of St. Michael from 1409. As a lay member of the monastery, Mauro was employed as mapmaker. In the records of the monastery his main job was recorded as collecting the monastery's rents, but from the 1450s he is also mentioned as the creator of a series of world maps. Although he was no longer f ...
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Biblioteca Marciana
The Marciana Library or Library of Saint Mark (, but in historical documents commonly referred to as the ) is a public library in Venice, Italy. It is one of the earliest surviving public libraries and repositories for manuscripts in Italy and holds one of the world's most significant collections of classical texts. It is named after St Mark, the patron saint of the city. The library was founded in 1468 when the humanist scholar Cardinal Bessarion, bishop of Tusculum and titular Latin patriarch of Constantinople, donated his collection of Greek and Latin manuscripts to the Republic of Venice, with the stipulation that a library of public utility be established. The collection was the result of Bessarion's persistent efforts to locate rare manuscripts throughout Greece and Italy and then acquire or copy them as a means of preserving the writings of the classical Greek authors and the literature of Byzantium after the fall of Constantinople in 1453. His choice of Venice was ...
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