Concept map on the Ottoman Turkish Empire, from the origins of the nomadic tribes of Asia Minor to the conquest of Constantinople in 1453. The map explains the origins of the Empire under Sultan Osman, the organization of a centralized state, and the role of the Janissaries. It presents the main conquests of Sultan Mehmed II, the conquest of Constantinople, and the end of the Eastern Roman Empire. The map also covers trade with Venice, religious tolerance, the law of fratricide, and the alliance with the Berbers, who became corsairs in the service of a state. A useful study guide for learning and reviewing the history of the Ottoman Empire.