Who was süleyman i, and what was significant about his rule?
answer with at least two full sentences.

Suleiman I was the longest reigning Sultan of the Ottoman Empire. Under his rule the Ottoman Empire conquered much of the Mediterranean, Red Sea, and Persian Gulf. Decades after Suleiman 1's rule the Ottoman Empire began to experience major political, institutional, and economic changes. These changes believed by many scholars to be inspired by Suleiman are called the Transformation of the Ottoman Empire.