The Ottoman Empire entered the 19th century under pressure to preserve its existence against Western powers. Dismissing the illusions of past superiority, the Ottoman court acknowledged that reforms had to be instituted to end the Empire’s long-time stagnation and instability. The Tanzimat reform movement was the most significant reaction of the Ottoman Empire to the Western powers during the period between 1839 and 1876. During the Tanzimat period, all aspects of the empire were reshaped in a new way with certain success. Through Tanzimat, the Ottoman Empire continued to preserve its position as one of the major powers of the European political order, re-established its autonomy in domestic affairs, and successfully defended its sovereignty in many disputed regions with considerable might against a powerful emerging West.