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Toledo is a province of central Spain, in the western part of the autonomous community of Castile–La Mancha.<br/><br/> The Plaza de España is a plaza in the Parque de María Luisa (Maria Luisa Park), in Seville, Spain, built in 1928 for the Ibero-American Exposition of 1929. It is a landmark example of the Regionalism Architecture, mixing elements of the Renaissance Revival and Moorish Revival (Neo-Mudéjar) styles of Spanish architecture.
Abu Bakr Muhammad ibn Zakariyya al-Razi, also known by his Latinized name Rhazes or Rasis (854 CE – 925 CE), was a Persian polymath, physician, alchemist, philosopher, and important figure in the history of medicine.<br/><br/> A comprehensive thinker, Razi made fundamental and enduring contributions to various fields, which he recorded in over 200 manuscripts, and is particularly remembered for numerous advances in medicine through his observations and discoveries. An early proponent of experimental medicine, he became a successful doctor, and served as chief physician of Baghdad and Rey hospitals.<br/><br/> Gerard of Cremona (Latin: Gerardus Cremonensis), c. 1114–1187, was an Italian translator of scientific books from Arabic into Latin. He worked in Toledo, Spain and obtained the Arabic books in the libraries at Toledo. Some of the books had been originally written in Greek and were unavailable in Greek or Latin in Europe at the time.<br/><br/> Gerard of Cremona is the most important translator among the Toledo School of Translators who invigorated medieval Europe in the twelfth century by transmitting the Arabs and ancient Greek knowledge in astronomy, medicine and other sciences, by making the knowledge available in the Latin language.
Populated since the Bronze Age, Toledo (Toletum in Latin) grew in importance during Roman times, being a main commercial and administrative centre in the Roman province of Tarraconensis. After the fall of the Roman Empire, Toledo served as the capital city of Visigothic Spain, beginning with Liuvigild (Leovigild), and was the capital of Spain until the Muslims conquered Iberia in the 8th century.<br/><br/> Under the Caliphate of Cordoba, Toledo enjoyed a golden age; it became a very large cosmopolitan city with an overwhelming Muladi (Iberian Muslim) population. This extensive period is known as La Convivencia, i.e. the co-existence of Jews, Christians, and Muslims. Under Arab rule, Toledo was called Tulaytulah. After the fall of the Caliphate, Toledo was the capital city of one of the richest Taifas of Al-Andalus.<br/><br/> Its population was overwhelmingly Muladi, and, because of its central location in the Iberian Peninsula, Toledo took a central position in the struggles between the Muslim and Christian rulers of northern Spain. The conquest of Toledo by Alfonso VI of Castile marked the first time a major city in Al-Andalus had fallen to Christian forces; it served to sharpen the religious aspect of the Christian reconquest.
Populated since the Bronze Age, Toledo (Toletum in Latin) grew in importance during Roman times, being a main commercial and administrative centre in the Roman province of Tarraconensis. After the fall of the Roman Empire, Toledo served as the capital city of Visigothic Spain, beginning with Liuvigild (Leovigild), and was the capital of Spain until the Muslims conquered Iberia in the 8th century.<br/><br/> Under the Caliphate of Cordoba, Toledo enjoyed a golden age; it became a very large cosmopolitan city with an overwhelming Muladi (Iberian Muslim) population. This extensive period is known as La Convivencia, i.e. the co-existence of Jews, Christians, and Muslims. Under Arab rule, Toledo was called Tulaytulah. After the fall of the Caliphate, Toledo was the capital city of one of the richest Taifas of Al-Andalus.<br/><br/> Its population was overwhelmingly Muladi, and, because of its central location in the Iberian Peninsula, Toledo took a central position in the struggles between the Muslim and Christian rulers of northern Spain. The conquest of Toledo by Alfonso VI of Castile marked the first time a major city in Al-Andalus had fallen to Christian forces; it served to sharpen the religious aspect of the Christian reconquest.
An astrolabe (Greek: ἁστρολάβον astrolabon, 'star-taker') is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. Its many uses include locating and predicting the positions of the Sun, Moon, planets, and stars, determining local time given local latitude and vice-versa, surveying, triangulation, and to cast horoscopes.<br/><br/> It was used in classical antiquity, through the Islamic Golden Age, the European Middle Ages and Renaissance for all these purposes. In the Islamic world, it was also used to calculate the Qibla and to find the times for Salah, prayers.<br/><br/> There is often confusion between the astrolabe and the mariner's astrolabe. While the astrolabe could be useful for determining latitude on land, it was an awkward instrument for use on the heaving deck of a ship or in wind. The mariner's astrolabe was developed to address these issues.