Selim III in the context of "Decline and modernization of the Ottoman Empire"

The Nizam-i Cedid (Ottoman Turkish: نظام جديد, romanized: Niẓām-ı Cedīd, lit. 'new order') was a series of reforms carried out by Ottoman Sultan Selim III during the late 18th and the early 19th centuries in a drive to catch up militarily and politically with the Western powers. The New Order regime was launched by Selim III and a coalition of reformers. Its central objectives were the creation of a professional army along European lines, a private treasury to finance military spending, and other administrative reforms. The age of the New Order can be generally said to have lasted from 1789 to 1807, when Selim III was deposed by a Janissary coup.

While the term "New Order" eventually came to encompass all of Selim III's reforms, the name was used contemporaneously to refer only to the reform's central innovation: the New Order Army. That army was largely a failure in its own time but reflected an important step in the stages of Ottoman attempts at reform.

The First Serbian Uprising was an uprising of Serbs in Orašac against the Ottoman Empire from 14 February 1804 to 7 October 1813. The uprising began as a local revolt against the Dahije, renegade janissary officers who had seized power in a coup d'état against the Ottoman sultan. It later evolved into a war for independence, known as the Serbian Revolution, after more than three centuries of Ottoman Empire rule and brief Austrian occupations.

In 1801, the Janissary commanders assassinated the Ottoman Pasha and took control of the Pashalik of Belgrade, ruling it independently of the Ottoman Sultan. This led to a period of tyranny, during which the Janissaries suspended the rights previously granted to the Serbs by the Sultan. They also raised taxes, imposed forced labour, and made other changes that negatively affected the Serbs. In 1804, the Janissaries feared that the Sultan would use the Serbs against them, which led to the assassination of many Serbian chiefs. An assembly chose Karađorđe to lead the uprising, and the rebel army quickly defeated and took over towns throughout the sanjak, technically fighting for the Sultan. Sultan Selim III, fearing their power, ordered all the Pashaliks in the region to crush them. The Serbs marched against the Ottomans and, after major victories in 1805–06, established a government and parliament that returned land to the people, abolished forced labour, and reduced taxes.

The term Nizam-i Djedid Army (Ottoman Turkish: نظام جديد, romanized: Niẓām-i Jedīd, lit. 'new order') refers to the new military establishment of the Nizam-i Cedid reform program which started in the Ottoman Empire c. 1789. The Nizam-i Djedid Army, largely a failure in its own time, nevertheless proved a much more effective infantry force than the Janissaries.

After Austria and Russia defeated the Ottoman Turkish forces in the Russo-Turkish War of 1787–92, the Ottoman Sultan Selim III (r. 1789–1807) concluded that Ottoman military required serious reform if the empire was to survive. As a result, he began implementing a series of reforms aimed at reorganizing the military after the model of European militaries. This included the usage of European training tactics, weapons, and even officers. These reforms troubled the Janissaries, who were suspicious and unreceptive towards the reforms. To this end, Selim III established the Nizam-i Djedid in 1797 in order to develop a replacement for the Janissaries. By 1806 this new army stood 26,000 men strong, equipped with French-style uniforms, European weapons, and a modern artillery corps. Due to their distinctly modern nature, the army was named Nizam-ı Cedid, which has the meaning of 'New Order' in Ottoman Turkish. English-speakers borrowed the Ottoman Turkish word niẓām as "nizam" and applied it generically in the 19th century to the Ottoman army or to any Ottoman soldier.

The Ottoman palace coups of 1807–1808 refers to several coups and rebellions deposing or restoring to the throne three Ottoman sultans, that took place as a result of the attempted reforms of Selim III.

In the 19th century, the Ottoman Empire faced threats on numerous frontiers from multiple industrialised European powers as well as internal instabilities. Outsider influence, internal corruption and the rise of nationalism demanded the Empire to look within itself and modernize. Kickstarting a period ornal reforms to centralize and standardize governance; European style training regimens for the military, standardized law codes and reformed property laws were initiated to better collect taxes and control the resources within the borders. The period of these reforms is known as the Tanzimat starting in 1839.

Despite the Ottoman empire's precarious international position, the central state was significantly strengthened. The process of reforming and modernization in the empire began with the declaration of the Nizam-I 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. Over the course of the 19th century, the Ottoman state became increasingly powerful and rationalized, exercising a greater degree of influence over its population than in any previous era.

The Ottoman Empire was founded in 1299 by Osman Gazi also known as Osman I. The history of the Ottoman Empire in the 18th century has classically been described as one of stagnation and reform. In analogy with 18th-century France, it is also known as the Ancien Régime or Old Regime, contrasting with the "New Regime" of the Nizam-i Cedid and Tanzimat in the 19th century. At the Ottoman Empire's peak it covered parts of North Africa, The Arabian Peninsula, all of modern-day Türkiye (Turkey), parts of Greece, and almost all of the Balkans.

The period characterized as one of decentralization in the Ottoman political system. Political and economic reforms enacted during the preceding War of the Holy League (1683-1699), particularly the sale of life-term tax farms (Ottoman Turkish: malikāne) instituted in 1695, enabled provincial figures to achieve an unprecedented degree of influence in Ottoman politics. This decentralization had once led historians to believe that the Ottoman Empire was in decline during this period, part of the larger and now debunked Ottoman Decline Thesis, but it is now recognized that the Ottomans were successfully able to tie emerging provincial elites politically and financially to the central government. The empire likewise experienced significant economic growth during much of the eighteenth century and was, until the disastrous war with Russia in 1768-74, also able to match its rivals in military strength. In light of this, the empire's history during this period is now generally viewed in more neutral terms, eschewing concepts such as 'decline' and 'stagnation'. The Old Regime was brought to an end not by a single dramatic event, but by the gradual process of reform begun by Sultan Selim III (r. 1789-1807), known as the Nizam-ı Cedid (New Order). Although Selim himself was deposed, his reforms were continued by his successors into the nineteenth century and utterly transformed the nature of the Ottoman Empire.

A seraglio, serail, seray or saray (from Persian: سرای, romanized: sarāy, lit. 'palace', via Turkish, Italian and French) is a castle, palace or government building which was considered to have particular administrative importance in various parts of the former Ottoman Empire.

"The Seraglio" may refer specifically to the Topkapı Palace, the residence of the former Ottoman sultans in Istanbul (known as Constantinople in English at the time of Ottoman rule).The term can also refer to other traditional Turkish palaces (every imperial prince had his own) and other grand houses built around courtyards.