Decline and modernization of the Ottoman Empire
Beginning from the late eighteenth century, the Ottoman Empire faced challenges defending itself against foreign invasion and occupation. In response to foreign threats, the empire initiated a period of tremendous internal reform which came to be known as the Tanzimat, which succeeded in significantly strengthening the Ottoman central state, despite the empire's precarious international position. Over the course of the nineteenth century, the Ottoman state became increasingly powerful and rationalized, exercising a greater degree of influence over its population than in any previous era. The process of reform and modernization in the empire began with the declaration of the Nizam-ı Cedid (New Order) during the reign of Sultan Selim III and was punctuated by several reform decrees, such as the Hatt-ı Şerif of Gülhane in 1839 and the Hatt-ı Hümayun in 1856. At the end of this period, marked with 1908, to a degree the Ottoman military became modernized and professionalized according to the model of Western European Armies. The period was followed by the defeat and dissolution of the Ottoman Empire (1908–1922).
History of Turkey
The Ottoman beylik's first capital was located in Bursa in 1326. Edirne which was conquered in 1361 was the next capital city. After largely expanding to Europe and Anatolia, in 1453, the Ottomans nearly completed the conquest of the Byzantine Empire by capturing its capital, Constantinople during the reign of Mehmed II. Constantinople was made the capital city of the Empire following Edirne. The Ottoman Empire would continue to expand into the Eastern Anatolia, Central Europe, the Caucasus, North and East Africa, the islands in the Mediterranean, Greater Syria, Mesopotamia, and the Arabian peninsula in the 15th, 16th and 17th centuries.