title: Suleiman the Magnificent
context: Suleiman I (Ottoman Turkish: سلطان سليمان اول‎ Sultan Süleyman-ı Evvel; Turkish: Birinci Süleyman, Kanunî Sultan Süleyman or Muhteşem Süleyman;[3] 6 November 1494– 6 September 1566), commonly known as Suleiman the Magnificent in the West and Kanunî Sultan Süleyman (Ottoman Turkish: قانونى سلطان سليمان‎; "The Lawgiver Suleiman") in his realm, was the tenth and longest-reigning Sultan of the Ottoman Empire from 1520 until his death in 1566.[4] Under his administration, the Ottoman state ruled over 15 to 25 million people.
question: When did Suleiman I reign as sultan?
answers: 1520 until his death in 1566