Ptolemy's world mapThe 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 150. 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.
Trinidad (ship)NOTOC Trinidad (Spanish for "Trinity") was the flagship (capitana) of Ferdinand Magellan's voyage of circumnavigation. Unlike Elcano's Victoria, which returned to Spain sailing across the Indian Ocean, Trinidad tried and failed to sail east across the Pacific to New Spain or modern-day Mexico. Trinidad was a nao (ship) of 100 or 110 tonels with square sails on the fore and main masts and a lateen mizzen. Its original crew was 61.
Geography (Ptolemy)The Geography (Γεωγραφικὴ Ὑφήγησις, Geōgraphikḕ Hyphḗgēsis, () "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. 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.
Cantino planisphereThe Cantino planisphere or Cantino world map is a manuscript Portuguese world map preserved at the Biblioteca Estense in Modena, Italy. It is named after Alberto Cantino, an agent for the Duke of Ferrara, who successfully smuggled it from Portugal to Italy in 1502. It measures 220 x 105 cm. This planisphere is the earliest surviving map showing Portuguese geographic discoveries in the east and west and is particularly notable for portraying a fragmentary record of the Brazilian coast, which the Portuguese explorer Pedro Álvares Cabral explored in 1500, the Southern coast of Greenland, explored in the late 1490s, and for depicting the African coast of the Atlantic and Indian Oceans with remarkable accuracy and detail.
James BayJames Bay (Baie James; Wînipekw) is a large body of water located on the southern end of Hudson Bay in Canada. Both bodies of water extend from the Arctic Ocean, of which James Bay is the southernmost part. Despite bordering the Canadian provinces of Quebec and Ontario, the bay and the islands within it, the largest of which is Akimiski Island, are politically part of Nunavut. Numerous waterways of the James Bay watershed have been modified with dams or diversion for several major hydroelectric projects.
Chinese export porcelainChinese export porcelain includes a wide range of Chinese porcelain that was made (almost) exclusively for export to Europe and later to North America between the 16th and the 20th century. Whether wares made for non-Western markets are covered by the term depends on context. Chinese ceramics made mainly for export go back to the Tang dynasty if not earlier, though initially they may not be regarded as porcelain.
CaciqueA cacique, sometime spelled as cazique ( kaˈsike; kɐˈsikɨ, kaˈsiki; feminine form: cacica) was a tribal chieftain of the Taíno people, who were the indigenous inhabitants of the Bahamas, the Greater Antilles, and the northern Lesser Antilles at the time of European contact with those places. The term is a Spanish transliteration of the Taíno word kasike. Cacique was initially translated as "king" or "prince" for the Spanish.
History of navigationThe history of navigation, or the history of seafaring, is the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. Many peoples have excelled as seafarers, prominent among them the Austronesians (Islander Southeast Asians, Malagasy, Islander Melanesians, Micronesians, and Polynesians), the Harappans, the Phoenicians, the Iranians, the ancient Greeks, the Romans, the Arabs, the ancient Indians, the Norse, the Chinese, the Venetians, the Genoese, the Hanseatic Germans, the Portuguese, the Spanish, the English, the French, the Dutch, and the Danes.
Mariner's astrolabeThe mariner's astrolabe, also called sea astrolabe, was an inclinometer used to determine the latitude of a ship at sea by measuring the sun's noon altitude (declination) or the meridian altitude of a star of known declination. Not an astrolabe proper, the mariner's astrolabe was rather a graduated circle with an alidade used to measure vertical angles. They were designed to allow for their use on boats in rough water and/or in heavy winds, which astrolabes are ill-equipped to handle.
History of longitudeThe history of longitude describes the centuries-long effort by astronomers, cartographers and navigators to discover a means of determining the longitude of any given place on Earth. The measurement of longitude is important to both cartography and navigation. In particular, for safe ocean navigation, knowledge of both latitude and longitude is required, however latitude can be determined with good accuracy with local astronomical observations.
