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Claudius Ptolemaeus (circa 100–circa 170), known as Ptolemy, was an astronomer, mathematician, and geographer of Greek descent who lived and worked in the Egyptian city of Alexandria. In his Geography, Ptolemy gathered all the geographic knowledge possessed by the Greco-Roman world. He used a system of grid lines to plot the latitude and longitude of some 8,000 places on a map that encompassed the known world at the height of the Roman Empire. Ptolemy’s work was lost to Europe in the Middle Ages, but around 1300 Byzantine ...
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University Library of Naples
Dismantling the Essences of “The Most Wondrous of Existences”
This 40-page manuscript, Tahdim al-Arkan min Laysa fi-al-Imkan Abda’ mima Kan (Dismantling the essences of “The most wondrous of existences”), by Ibrāhīm ibn ʻOmar al-Biqāʻī (1406 or 1407−80) concerns a philosophical dispute in the Islamic world over the possibility of the Creator fashioning a more perfect world than the one that exists. This issue had been raised by the renowned philosopher-theologian al-Ghazzali (1058−1111), who answered in the affirmative. In this text, al-Biqāʻī refutes al-Ghazzali, stating that “it is impossible for God’s creation to be more perfect than ...
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National Library and Archives of Egypt
Sixth Map of Asia
Several editions of Ptolemy’s Geographia (Geography), translated into Latin from the original Greek, were published in Europe in the 15th century. This map is from the 1478 edition, which was published in Rome. Ptolemaic atlases included 12 maps of Asia. The “Sixth Map of Asia” covered the Arabian Peninsula. The outlines of this map are crude, but many geographic features, including the Red Sea, the Indian Ocean, and different features of the peninsula are clearly recognizable.
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Qatar National Library