One of the most consequential treaties in European history was signed in a Bulgarian village that most Bulgarians could not point to on a map. On 21 July 1774, in a place then called Küçük Kaynarca and known today as Kaynardzha, a dusty village in the northeast near Silistra, Russia and the Ottoman Empire ended a six-year war and quietly rearranged the balance of power in the Black Sea for the next century.
What happened on this day
The Treaty of Küçük Kaynarca closed the Russo-Turkish War of 1768 to 1774, and it was a humiliation for the Ottomans dressed up as a peace. Russia walked away with the port of Azov, the Crimean fortresses of Kerch and Yenikale, a slice of the Kuban and the mouth of the Dnieper, pushing its frontier down to the Black Sea. Russian merchant ships won the right to pass the Dardanelles. It was, in trade terms alone, a landslide.
The cleverest clause was about Crimea. On paper the Crimean Khanate became independent, answerable to the Ottoman sultan only in religious matters. In practice it was now in Russia's pocket, and the fiction lasted barely nine years before Catherine the Great annexed Crimea outright in 1783. Anyone following the peninsula's more recent history will recognise the template: independence on paper, control in fact.
But the clause that mattered most to this part of the world was the quietest one. The treaty let Russia build an Orthodox church in Constantinople and gave it a vague right to speak for the Ottoman Empire's Orthodox Christians. Vague was the point. Over the next hundred years Russia stretched that single sentence into a claim to protect every Orthodox Christian under Ottoman rule, and that self-appointed role became the standing excuse for interfering in the Balkans. It is not a straight line, but it is a real one, from this village to the Russian armies that crossed the Danube in 1877 and left Bulgaria a free country.
Why this matters for British expats
If you want to understand why Russia looms so large in the Bulgarian imagination, and why the word "liberator" still carries a charge here that puzzles a lot of Brits, this treaty is one of the places the story starts. The protector-of-the-Orthodox idea signed at Kaynardzha in 1774 is part of the long fuse that ends with the Liberation of 1878, the event that defines modern Bulgaria more than any other. Knowing that turns a lot of statues, street names and national-day speeches from background noise into something you can actually read.
There is a sharp Shumen angle here too. From the eighteenth century the Ottomans held this frontier with a ring of four great fortresses, the "quadrilateral" of Ruse, Silistra, Varna and Shumen, built to stop a Russian army breaking through toward Istanbul. Shumen was the strongpoint of the set, and its fortress had already stood for centuries: the Ottomans took the town in 1388. In the Liberation War of 1877 to 1878 the Russian advance simply went around the quadrilateral, and Shumen held out, surrendering only after the war was already lost. You can walk the ruins of the Shumen Fortress on the plateau above the city; it is, in a real sense, a monument to the wars this treaty helped set in motion.
And Kaynardzha itself is still there, a working village in Silistra province, a couple of hours' drive north of Shumen. There is not a great deal to see, which is rather the point: world history was decided in a place that went straight back to being ordinary.
Sources and further reading
The terms and the location here draw on the Bulgarian Wikipedia entry on the Treaty of Küçük Kaynarca and the standard English-language histories of the Russo-Turkish wars. The detail on Shumen's fortress and its place in the Ottoman quadrilateral comes from the well-documented record of the city's military past.