The Ottoman Empire, officially the Sublime State of Ottomania (in Ottoman Turkish:دولت عالیه عثمانیه), was a multinational state that lasted from 1299 to 1923. It was centered in Turkey and controlled the eastern and southern lands around the Mediterranean Sea. The empire was founded by Osman I around 1299, and was most powerful from around 1400 to 1600, when it controlled trade and politics in southeastern Europe, southwest Asia, and northern Africa. Suleiman the Magnificent was one of the most powerful rulers.