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Euclid (fl. 300 BCE), sometimes called Euclid of Alexandria to distinguish him from Euclid of Megara, was a Greek mathematician, often referred to as the 'father of geometry'. He was active in Alexandria during the reign of Ptolemy I (323–283 BCE).<br/><br/> Hermann of Reichenau (July 18, 1013 – September 24, 1054), also called Hermannus Contractus or Hermannus Augiensis or Herman the Cripple, was a Roman Catholic 11th-century scholar, composer, music theorist, mathematician, and astronomer. He built musical and astronomical instruments and was also a famed religious poet.
The Jāmiʿ al-tawārīkh, (Mongolian: Судрын чуулган, Sudar-yn Chuulgan; Arabic: جامع التواريخ ‎; Persian: جامع‌التواریخ ), ('Compendium of Chronicles') or Universal History is an Iranian work of literature and history written by Rashid-al-Din Hamadani at the start of the 14th century.
Probably born in Venice around 1254 CE, Marco Polo was raised by his aunt and uncle after his mother died. His father, Niccolo, was a Venetian merchant who left before Marco was born to trade in the Middle East. Niccolo and his brother Maffeo passed through much of Asia and met with Mongol emperor Kublai Khan who reportedly invited them to be ambassadors. In 1269, Niccolo and Maffeo returned to Venice, meeting Marco for the first time.<br/><br/> In 1271, Marco Polo, aged 17, with his father and his uncle, set off for Asia, travelling through Constantinople, Baghdad, Persia, Kashgar, China and Burma. They returned to Venice 24 years and 15,000 miles later with many riches. Upon their return, Venice was at war with Genoa, and Marco Polo was imprisoned. He spent the few months of his imprisonment dictating his adventures to a fellow inmate, Rustichello da Pisa, who incorporated the tales into a book he called 'The Travels of Marco Polo'. The book documented the use of paper money and the burning of coal, and opened European eyes to the wonders of the East.