Ottoman Empire

The Ottoman Empire was a dynastic state founded in northwestern Anatolia around the end of the 13th century. Over six centuries it expanded across parts of southeastern Europe, western Asia, and North Africa, becoming a major Eurasian power. Its history included periods of conquest, commerce, cultural exchange, and political reform; defeat in the First World War was followed by the abolition of the sultanate in 1922 and the establishment of the Republic of Turkey in 1923.

Last updated
21 October 2026
Confidence
High (96%)
Sources
6
Versions
1
This article was researched and drafted with AI assistance and checked by an automated review pass. It is not guaranteed to be accurate — verify important facts against the references below.

Origins and expansion

The Ottoman dynasty emerged among the small principalities of post-Seljuq Anatolia. Osman I consolidated a principality near Söğüt in the late 13th century, and the state's conventional founding date is about 1299. His successors extended Ottoman control through northwestern Anatolia and into southeastern Europe. In 1453, forces led by Mehmed II captured Constantinople, ending Byzantine rule in the city; it became the dynasty's imperial capital and is now known as Istanbul. Expansion continued over subsequent centuries, though the empire's borders and degree of control changed over time.

Government and diverse societies

The empire was ruled by the Ottoman dynasty, with the sultan at its head. Its administrative and military institutions developed over centuries and adapted to a large, varied territory. The population included Muslim and non-Muslim communities with different languages and local traditions; imperial rule was not culturally uniform, and regional practices persisted alongside institutions and artistic forms supported by the court. The balance between central authority and local arrangements differed across periods and provinces.

Power, commerce, and culture

The empire reached a height of political influence during the 16th century, especially under Süleyman I (Süleyman the Magnificent, r. 1520–1566). At different times Ottoman rule extended through much of southeastern Europe, Anatolia, the Middle East, and parts of North Africa. Control of ports and trade routes connected provincial markets; Istanbul became a major commercial center. Imperial patronage supported architecture, manuscript arts, carpets, tiles, and textiles, while artists and communities across the provinces adapted shared forms to local settings.

Reform, war, and dissolution

From the 19th century, Ottoman governments pursued reforms amid military competition, fiscal pressures, and political change. The Tanzimat reforms, conventionally dated 1839–1876, sought to reorganize state institutions and law. Nationalist movements and conflicts reshaped the empire, and the government entered the First World War in 1914 on the side of Germany and Austria-Hungary. During the war, Ottoman authorities deported Armenians and carried out mass killings; the 1915–1916 campaign is recognized as the Armenian Genocide. Military defeat and the postwar political struggle led to the empire's dissolution: the sultanate was abolished in 1922, and the Republic of Turkey was proclaimed in 1923.

Key facts

Conventional foundation date
About 1299, when Osman I consolidated Ottoman power in northwestern Anatolia.
Capture of Constantinople
Mehmed II captured the city in 1453; it became the Ottoman imperial capital.
Period of major influence
The empire reached a height of power and influence in the 16th century, including during Süleyman I's reign.
End of the sultanate
The Ottoman sultanate was abolished in 1922; the Republic of Turkey was proclaimed in 1923.
Armenian Genocide
Ottoman authorities perpetrated the 1915–1916 genocide against Armenians in the empire.

Timeline

  1. c. 1299

    Osman I consolidated his power and founded the Ottoman state in northwestern Anatolia.

  2. 1453

    Mehmed II captured Constantinople, which became the Ottoman imperial capital.

  3. 1839–1876

    The Tanzimat reforms sought to reorganize Ottoman institutions and law.

  4. 1914

    The Ottoman government entered the First World War alongside Germany and Austria-Hungary.

  5. 1915–1916

    Ottoman authorities carried out the Armenian Genocide.

  6. 1922–1923

    The sultanate was abolished in 1922; the Republic of Turkey was proclaimed in 1923.

Ask about this article

Answers use only “Ottoman Empire” and its references, with citations.

References

  1. 1.
    Ottoman Empire Facts, History, & Map

    Encyclopaedia Britannica · other · reliability: high · retrieved 21 October 2026

    Supports: Covers the empire's origins, expansion, institutions, reforms, World War I, and dissolution.

  2. 2.
    Reference Works - Ottoman Turkish Collections in the Library of Congress

    Library of Congress · other · reliability: high · retrieved 21 October 2026

    Supports: Summarizes the Ottoman state's foundation, expansion, rule under Süleyman I, and the end of the sultanate and establishment of the Turkish Republic.

  3. 3.
    The Greater Ottoman Empire, 1600–1800

    The Metropolitan Museum of Art · other · reliability: high · retrieved 21 October 2026

    Supports: Describes the empire's regional reach, trade networks, urban centers, artistic institutions, and diverse local cultures.

  4. 4.
    The Ottoman Empire

    NZ History, Manatū Taonga – Ministry for Culture and Heritage · other · reliability: high · retrieved 21 October 2026

    Supports: Provides historical context for the empire's diversity, entry into World War I, and the collapse of Ottoman rule.

  5. 5.
    The Armenian Genocide (1915-16): Overview

    United States Holocaust Memorial Museum · other · reliability: high · retrieved 21 October 2026

    Supports: Documents the 1915–1916 genocide against Armenians in the Ottoman Empire and the role of Ottoman authorities.

  6. 6.
    Why the Ottoman Empire rose and fell

    National Geographic · other · reliability: high · retrieved 21 October 2026

    Supports: Provides an additional overview of the empire's growth, territorial reach, and dissolution after World War I.

References are suggested by the research engine and may be incomplete. Unverified URLs are omitted rather than guessed.

Article history

  1. Version 121 October 2026 · EditorCreated by Zapia