In 1790 the Ottoman Empire still looked huge on a map. It stretched from Algeria to Iraq, from the Balkans to Arabia.
But size was hiding a problem. The empire's government, army and economy had not modernised while European rivals were racing ahead — and by the 1800s the cracks were showing everywhere at once.
Cause and consequence, all the way down: Every event in this micro connects to the next one. Napoleon's invasion exposes Ottoman weakness, which lets Muhammad Ali rise, which happens alongside the Greeks revolting — and each success by a rebel or a rival makes the empire look weaker still. Think of decline as a chain reaction, not four separate stories.
Losing North Africa
North Africa was only ever loosely controlled from Istanbul. Local rulers — called beys and deys — collected taxes and ran their own armies, paying the sultan little more than token respect.
Algeria, Tunisia and Tripoli (Libya) were already semi-independent by 1790. Egypt was nominally Ottoman too, but that thin thread of control was about to snap completely.
- Algeria — ruled by a Janissary-backed dey; France invaded and annexed it in 1830, ending Ottoman rule there for good.
- Tunisia — self-governing under its own bey from the 1700s; France made it a protectorate in 1881.
- Egypt — technically Ottoman, but Muhammad Ali's family ran it as their own kingdom from 1805 onward.
- Tripolitania (Libya) — the most loosely held; Istanbul briefly reasserted direct rule in 1835 but lost real control again over time.
So even before Napoleon or the Greeks, North Africa was already drifting out of the sultan's grip. That drift is the first sign historians point to when they date Ottoman decline from "c.1790."
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The shock of Napoleon's invasion (1798)
In 1798, the French general Napoleon Bonaparte landed an army in Egypt. He wanted to threaten Britain's route to India and win glory for revolutionary France.
His troops smashed the Egyptian Mamluks Mamluks at the Battle of the Pyramids. It was a humiliating wake-up call: a European army had marched straight into Ottoman territory and won easily.
Why 1798 matters so much: The Royal Navy under Nelson destroyed the French fleet at the Battle of the Nile weeks later, so France did not keep Egypt long. But the real damage was psychological — the invasion proved the empire could not defend its own provinces, and it created the power vacuum Muhammad Ali would soon fill.
The rise of Muhammad Ali
After the French left in 1801, chaos in Egypt let an Albanian-born Ottoman officer named Muhammad Ali seize power. The sultan recognised him as governor (wali) of Egypt in 1805 rather than fight a war he could not win.
Muhammad Ali then built something remarkable: a modern conscript army, new factories, European-style schools, and a state that ran cotton exports for profit. Egypt became rich and powerful — while technically staying part of the empire.
Loyal service
Muhammad Ali's army crushed the Wahhabi revolt in Arabia (1811–18) and helped fight the Greeks — proving useful to the sultan.
Overreach
In the 1830s he invaded Ottoman Syria and pushed his own army deep into Anatolia, nearly toppling the sultan himself.
Great Power rescue
Britain, Russia and Austria stepped in during 1840 to force Muhammad Ali back to Egypt alone — because none of them wanted the empire to collapse just yet.
Muhammad Ali: built up by Ottoman weakness, then nearly broke the empire himself.
That 1840 rescue is a pattern worth remembering: European powers often propped the Ottomans up rather than letting them fall, because a sudden collapse threatened their own rivalries more than a slow decline did.
The Greek War of Independence (1821–1832)
In 1821, Greek rebels rose up against Ottoman rule, inspired by nationalism and resentment of heavy taxes and unequal treatment. The revolt spread fast through the Peloponnese.
Ottoman forces struggled to put it down, so the sultan called in Muhammad Ali's modern Egyptian army to help — a sign of how much Istanbul now depended on its own over-mighty governor.
Sympathy changed the outcome: European public opinion romanticised the Greek cause (poets like Byron even fought and died for it). That sympathy pulled Britain, France and Russia into the war on the Greek side, and their navies destroyed the Ottoman-Egyptian fleet at Navarino in 1827. Greece won independence in 1830–32 — the first territory the empire ever lost to a nationalist revolt, not just to another empire.
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By the mid-1800s, European statesmen had a name for their shared worry: the Eastern Question. Nobody agreed on the answer, and that disagreement shaped decades of diplomacy and war.
Why Europe cared
- Economic — Ottoman markets, trade routes and raw materials (especially cotton and grain) were valuable to industrialising Europe.
- Religious — Russia claimed to protect Orthodox Christians inside the empire; France claimed to protect Catholics; both used this to justify meddling.
- Strategic — control of the Bosphorus/Dardanelles straits meant control of access between the Mediterranean and the Black Sea, vital for Russian trade and naval power.
What each power wanted
- Russia wanted the straits open for its fleet and saw itself as the natural leader of Balkan Slavs and Orthodox Christians.
- Britain wanted the Ottoman Empire kept alive and stable, as a buffer that blocked Russian expansion toward India and the Mediterranean.
- Austria-Hungary feared Balkan nationalism spilling over into its own multi-ethnic empire.
- France wanted influence and trade, and liked reminding Russia it had rivals.
The Crimean War (1853–1856)
Tensions over the "Question" boiled over when Russia invaded Ottoman territory near the Danube, claiming to defend Orthodox Christians. The sultan declared war, and Britain and France joined in on the Ottoman side — determined to stop Russia gaining the straits.
The fighting was brutal, centred on the siege of the Russian fortress at Sevastopol in the Crimea. Russia lost, and the 1856 Treaty of Paris forced it to give up its claim to protect Ottoman Christians and demilitarised the Black Sea.
A win that revealed weakness: The Ottomans technically won the Crimean War — but only because Britain and France did the heavy lifting. That dependence on European allies to survive is exactly what "Eastern Question" diplomacy looked like in practice: the empire kept existing because it suited others, not because it was strong.
Balkan unrest
Nationalism kept spreading through the Balkans after Greece's success. Serbia won growing autonomy earlier in the century, and by the 1870s, Bosnia-Herzegovina and Bulgaria were both in open revolt against Ottoman rule and heavy taxation.
Ottoman troops crushed the Bulgarian uprising of 1876 with such violence — killings later called the "Bulgarian Horrors" by British critics — that European public opinion turned sharply against Istanbul, giving Russia a moral excuse to intervene again.
The Russo-Turkish War (1877–1878)
Russia declared war in April 1877, presenting itself as liberator of the Balkan Slavs. Ottoman forces put up fierce resistance — notably the long siege at Plevna in Bulgaria — but Russian and allied Balkan armies eventually broke through and advanced almost to Istanbul.
The defeated Ottomans signed the Treaty of San Stefano (March 1878), which was extremely generous to Russia's allies: it created a huge new autonomous Bulgaria stretching to the Aegean Sea, clearly a Russian client state.
Why Britain and Austria panicked: A giant pro-Russian Bulgaria on the Aegean threatened British sea routes and Austrian ambitions in the Balkans alike. Both powers refused to accept San Stefano and forced a full renegotiation — proving that the "Eastern Question" was decided in European chancelleries as much as on Ottoman battlefields.
| Treaty of San Stefano (1878) | Treaty of Berlin (1878) |
|---|---|
| Huge autonomous Bulgaria reaching the Aegean Sea | Bulgaria shrunk drastically and split into three parts |
| Serbia, Montenegro, Romania made fully independent | Same — independence for Serbia, Montenegro, Romania kept |
| Russia gained territory in the Caucasus | Russia's Caucasus gains mostly confirmed, but influence curbed |
| Almost no role for Britain or Austria-Hungary | Austria-Hungary occupied Bosnia-Herzegovina; Britain took Cyprus |
The Congress of Berlin (hosted by Germany's Bismarck as an "honest broker") rewrote San Stefano in the summer of 1878. The Ottomans kept more Balkan land than Russia had planned — but only because rival empires wanted it that way, not because Istanbul had any real say.