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Ottoman Empire in AP World History: Modern

The Ottoman Empire was a Sunni Muslim, Turkic land-based empire that lasted from about 1299 to 1922 and ruled Southern Europe, the Middle East, and North Africa. It grew from a small state in Anatolia into a gunpowder empire that took Constantinople in 1453, governed a diverse population for centuries, and broke apart after fighting on the losing side of World War I.

This definition is part of Fiveable's AP World History: Modern review, which also has guided practice questions.

Verified for the 2027 AP World History: Modern exam•Last updated November 2026•Fiveable Content Team

From an Anatolian frontier state to a three-continent gunpowder empire

The Ottomans emerged in northwestern Anatolia around 1300 as the Seljuk Sultanate of Rum broke apart. You can study them in the broader context of the new Turkic-led Islamic states in Topic 1.2, alongside examples like the Seljuks and the Mamluks. Osman, the dynasty's founder, led a small frontier state there, and 1299 is the traditional founding date.

Expansion came through gunpowder weapons and cannons, which is exactly the explanation Topic 3.1, Empires Expand, asks for. Mehmed II used heavy cannon to break the walls of Constantinople in 1453 and made it the Ottoman capital, later called Istanbul. Selim I defeated the Mamluk Sultanate in 1516-1517, adding Egypt and Syria, and under Suleiman the Magnificent (r. 1520-1566) Ottoman armies pushed into Central Europe and besieged Vienna in 1529.

Topic 3.1 lists the Ottomans as one of four land empires of 1450-1750, along with the Manchu (Qing), Mughals, and Safavids. The bigger question in Unit 3 is how these states expanded and held power, and the Ottomans give you examples for both parts of that question.

Devshirme, timars, and tax farms: how the sultans kept control

Topic 3.2 asks how rulers legitimized and consolidated power, and the course names two Ottoman methods directly as examples. The devshirme took boys from Christian families, mostly in the Balkans, converted them to Islam, and trained them for state service. The strongest became administrators; many others joined the Janissaries, an elite infantry corps loyal to the sultan instead of to any noble family. That's the "elite bureaucrats" and "professional military" idea in one system.

For money, the state used tax farming, selling the right to collect taxes to private collectors who paid the state up front. The timar system gave land revenue to cavalrymen in exchange for military service, and Topic 4.7 lists timar holders as an example of an existing elite whose power rose and fell as the sultans grew stronger.

Topic 4.7 also uses the Ottomans as a model of a state that made room for diversity. Under the millet system, religious communities like Orthodox Christians and Jews ran many of their own affairs under their own leaders. When Spain and Portugal expelled Jews, the Ottomans took many of them in, which makes a useful contrast. The same topic also notes that Ottoman women of different classes held unequal status, so "tolerant" doesn't mean "equal."

Sunni Ottomans vs. Shi'a Safavids, and why they're easy to mix up

Both were Islamic gunpowder empires in the Middle East during 1450-1750, so they get swapped constantly. The split is religious. The Ottomans were Sunni and claimed leadership of the wider Sunni world after taking Mamluk lands, while the Safavids in Persia made Shi'a Islam their state religion.

Their wars, including the Ottoman victory at Chaldiran in 1514, were fought over land and faith at the same time. Topic 3.3 states that this rivalry intensified the Sunni-Shi'a divide, so if a question asks how political competition changed a belief system in this period, this is the case to use. A related mix-up: the Safavid-Mughal conflict is another rivalry named in Topic 3.1, and it doesn't involve the Ottomans.

Tanzimat to 1922: a collapse with inside and outside causes

In the 1800s the empire lost ground to industrializing European states and to nationalism among its own subjects. The Greek War of Independence began in 1821, and Greece was recognized as independent in 1830. Other Balkan peoples followed, which is why the course lists Balkan nationalisms as a nationalist movement in Topic 5.2. The same topic lists Ottomanism, the idea of a shared Ottoman identity across religions and ethnic groups, as a response meant to hold the empire together.

Topic 5.8 names the Ottoman Empire, along with Qing China, as a state that tried to modernize its military and economy and ran into resistance from entrenched elites. The Janissaries opposed reform until Mahmud II destroyed the corps in 1826, and the Tanzimat reforms (beginning in 1839) reorganized law, the military, and administration on European models.

In Unit 7, Topic 7.1, Shifting Power After 1900, names the Ottoman, Russian, and Qing empires as old land-based empires that collapsed from a combination of internal and external factors. Internally, there was nationalism, debt, and the Young Turk revolution of 1908. Externally, there was European pressure and then World War I, which the Ottomans entered in 1914 as one of the Central Powers. During and after the war, the Armenian genocide (an illustrative example in Topic 7.8) killed a large share of the empire's Armenian population. The sultanate was abolished in 1922, and the Republic of Turkey followed in 1923. Several former Ottoman Arab territories, including Iraq, Palestine, and Syria, became League of Nations mandates administered by Britain or France.

Writing with the Ottomans: comparisons and causation claims

The devshirme compared with another state's way of recruiting officials, or Ottoman tax farming compared with another empire's revenue system, is the kind of pairing a multiple-choice question might build. Identify the specific mechanism the sources or question address, such as recruitment, revenue, or legitimacy.

For the short-answer questions, the Ottomans fit prompts on how empires governed diverse populations or why states reformed in the 1800s. A strong answer names one specific practice (devshirme, millet, tax farming, the Tanzimat) and explains what problem it solved.

In the Document-Based Question and the Long Essay Question, the Ottomans give you evidence across most of the course. Some common moves:

  • Continuity and change: Ottoman management of diversity from the millet system to the rise of Balkan nationalism.
  • Comparison: Ottoman and Mughal methods of handling religious diversity, or Ottoman and Qing reform efforts.
  • Causation: weighing internal versus external causes of the empire's collapse, which is how Topic 7.1 frames it.

The common weak answer blames only World War I. The course wants both sides, so pair the war with nationalism and failed or resisted reforms.

Where this sits in AP® World

Keep studying AP® World Unit 3