The rise of the Ottoman Empire in the late 13th and early 14th centuries was primarily due to a combination of strategic military prowess, economic expansion, and the decline of neighboring empires. Founded by Osman I, the empire capitalized on the weakened Byzantine Empire and gained territory through warfare, diplomacy, and strategic alliances. The Ottomans developed an efficient administrative system and promoted trade across their expansive territory, which enhanced their wealth and influence. Moreover, their tolerance of diverse cultures and religions helped solidify internal stability, allowing the empire to grow and thrive for centuries, ultimately becoming one of the world's largest and most powerful empires.