List of campaigns of Suleiman the Magnificent
The imperial campaigns (, "sefer-i humāyūn") of Suleiman the Magnificent were a series of campaigns led by Suleiman, who was the tenth and longest-reigning Sultan of the Ottoman Empire. He is known in the Western world as "Suleiman the Magnificent", and in the East as "the Lawgiver" (), for his complete reconstruction of the Ottoman legal system. During his reign from 1520 to his death in 1566, the Ottoman Empire became the most powerful state in the world. At its height, the Empire stretched from Hungary to Yemen.
Osman I
Osman I or Osman Gazi (; ; died 1323/4), sometimes transliterated archaically as Othman, was the leader of the Ottoman Turks and the founder of the Ottoman dynasty. He and the dynasty bearing his name later established and ruled the nascent Ottoman Empire (then known as the Ottoman Beylik or Emirate). The state, while only a small principality during Osman's lifetime, transformed into a world empire in the centuries after his death. It existed until shortly after the end of World War I. Historians commonly mark the end date at the abolition of the sultanate in 1922, the proclamation of the Republic of Turkey in 1923, or the abolition of the caliphate in 1924.