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  The Age of the Dromōn: The Byzantine Navy Ca 500-1204 - John H. Pryor - Google Books

  https://books.google.de/books?id=OJPfAAAAMAAJ

  This volume examines the development and evolution of the war galley known as the Dromon, and its relative, the Chelandion, from first appearance in the sixth century until its supercession in the twelfth century by the Galea developed in the Latin West.…

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  The Spread of Islam Throughout the World - Google Books

  https://books.google.de/books?id=qVYT4Kraym0C

  Islamic culture, which is still vigorous in spite of its great antiquity, set out to develop side by side a vision of the individual and of the universe, a philosophy and an art of living that can be seen in the impressive remains of its heritage that is…

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  African Cultural Astronomy: Current Archaeoastronomy and Ethnoastronomy ... - Google Books

  https://books.google.de/books?id=4DJpDW6IAukC&dq=Schouwia+cattle&hl=de&source=gbs_navlinks_s

  Astronomy is the science of studying the sky using telescopes and light collectors such as photographic plates or CCD detectors. However, people have always studied the sky and continue to study the sky without the aid of instruments this is the realm of…

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