Seydi Ali Reis (1498–1563)
Born 1498 CE, died 1563 CE.
Seydi Ali Reis (1498–1563), formerly also written Sidi Ali Reis and Sidi Ali Ben Hossein, was an Ottoman admiral and navigator. Known also as Katib-i Rumi, Galatalı or Sidi Ali Çelebi, he commanded the left wing of the Ottoman fleet at the naval Battle of Preveza in 1538. He was later promoted to the rank of fleet admiral of the Ottoman fleet in the Indian Ocean, and as such, encountered the Portuguese forces based in the Indian city of Goa on several occasions in 1554. Seydi was able to unite several Muslim countries on the coast of the Arabian Sea (such as the Makran Sultanate, Gujarat Sultanate, and Adal Sultanate) against the Portuguese. He is famous today for his books of travel such as the Mir'ât ül Memâlik (The Mirror of Countries, 1557) which describes the lands he has seen on his way back from India to Constantinople, and his books of navigation and astronomy, such as the Mir’ât-ı Kâinât (Mirror of the Universe) and the Kitâb ül Muhit: El Muhit fî İlmi'l Eflâk ve'l Buhûr (Book of the Regional Seas and the Science of Astronomy and Navigation) which contain information on navigation techniques, methods of determining direction, calculating time, using the compass, informatio
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