The Ottoman Empire expanded significantly from the late 13th century to the 17th century, becoming one of the most powerful states in the world. This expansion began under leaders like Osman I and continued with sultans such as Suleiman the Magnificent, who conquered vast territories in Southeast Europe, Western Asia, and North Africa. The empire's growth was driven by military conquests, strategic marriages, and alliances. Key battles, such as the Fall of Constantinople in 1453, marked turning points in their expansion. The Ottomans established a diverse and multicultural empire, integrating various peoples and cultures under their rule.