📅 ON THIS DAY IN BULGARIA, Friday 19 June
Today, 19 June 2026, marks a look back to 6 June 1870, when in the village of Boynitsa near Vidin, then still under Ottoman rule, Gancho Tsenov was born. By the time he died in 1949, he'd earned a doctorate from Humboldt University in Berlin, written a dozen books on Bulgarian history, and made himself so academically radioactive that Sofia University rejected him twice for professorships and the communist regime banned his work entirely.
The reason: Tsenov spent his career arguing that the entire foundation of Bulgarian historiography was wrong.
What happened on this day
Tsenov's early trajectory looked conventional enough. He graduated in history from Sofia University in 1894, taught at the gymnasium in Vidin for two years, then worked in the cultural department of the Military Ministry. In 1899 he won a competitive four-year research fellowship to Humboldt University in Berlin, where he defended a dissertation on Russian history: "Who Set Fire to Moscow in 1812?", a question about Napoleon's invasion of Russia that had nothing to do with Bulgaria and earned him his doctorate without controversy. He became the first Bulgarian to earn a PhD at that particular German institution.
Then he pivoted to the subject that would define and destroy his academic career: the origins of the Bulgarian people.
In 1910 Tsenov published his magnum opus, "The Origins of Bulgarians and the Origin of the Bulgarian State and the Bulgarian Church" (Произходът на българите и начало на българската държава и българската църква). The book laid out what historians today call the "autochthonous theory": the claim that Bulgarians were not, as mainstream scholarship held, a Central Asian Turkic people who migrated into the Balkans in the 7th century, but rather descendants of ancient Thracians and Illyrians who had always lived there. Volga Bulgaria, he argued, was a fiction; the so-called Proto-Bulgars never existed as a distinct Turkic group. The people who founded the First Bulgarian Empire in 681 CE were simply the latest expression of a continuous Balkan population stretching back to antiquity.
He went further. He claimed Alexander the Great was ethnically Bulgarian. He claimed the Byzantine Emperor Justinian I and his general Belisarius were Bulgarians. He argued the medieval Croats took their name from the Bulgarian Khan Kubrat. He maintained that the Slavic speakers who today identify as Bulgarians were indigenous to the Balkans, with unbroken continuity from the ancient world to the modern nation-state.
The academic establishment's response was immediate and unequivocal: this was pseudohistory dressed in scholarly apparatus. Professor Vasil Zlatarski, the towering figure of early 20th-century Bulgarian medieval studies, led the charge. His circle, which included Professor Petar Nikov, Professor Petar Mutafchiev, and Professor Stefan Mladenov, dismantled Tsenov's methods publicly, accusing him of selective use of sources, misinterpretation of linguistic evidence, and in some cases outright plagiarism. Tsenov sued Nikov and Mutafchiev for libel; the cases went nowhere.
In the 1910s, when Tsenov applied to become an associate professor in medieval history at Sofia University, the faculty rejected him. In 1936, after Zlatarski's death, Tsenov tried again for the chair of Bulgarian history. Petar Mutafchiev was appointed the external referee and wrote a scathing review, calling Tsenov's scholarly method "a monstrous approach that is the negation of all science". The Faculty Council rejected the application. Petar Nikov took the chair instead.
Tsenov returned to Germany, where his wealthy German wife funded the publication of his work through prestigious academic presses: Walter de Gruyter, Ebering, Steiwetz, Minerva, Reisland, Dyk, Vaduz. He lectured at Humboldt on ancient history. His books circulated in Central Europe, where the Balkan nationalist movements of the early 20th century occasionally found his theses useful, but Bulgarian academia treated him as a pariah.
The post-war exile
After the communist coup in Bulgaria in September 1944, Tsenov's situation went from professionally untenable to personally dangerous. The new regime labelled him a "fascist and great-Bulgarian chauvinist". His books were confiscated and locked in the secret reserve collection of the National Library in Sofia, inaccessible to the public. He remained in Germany with his German wife, surviving by translating texts from Bulgarian, German, Latin, Greek, Hebrew, Hungarian, Polish, and Russian. The autumn of 1949, he died there, seventy-nine years old, his academic reputation in Bulgaria destroyed, his theory rejected by every credible historian who examined it.
Today, mainstream Bulgarian historiography categorises the autochthonous theory as groundless fringe material. The linguistic, archaeological, and documentary evidence for a 7th-century migration of Turkic-speaking Bulgars from the Pontic steppe is overwhelming. Modern DNA studies confirm Central Asian genetic markers in the medieval Bulgarian population. Tsenov's claims about Alexander the Great and Justinian I have no basis in the historical record. Some contemporary researchers draw parallels between his theses and the "antiquisation" project in North Macedonia, where similar claims about unbroken ancient continuity have been deployed for nationalist purposes. His writings are now read primarily on amateur-history websites and nationalist forums, championed by a small cohort of non-specialist supporters, none of whom work in academic history departments.
Why this matters for British expats
It doesn't, in any immediate sense. 19 June 2026 is an ordinary working Friday. The banks are open, the roads into Shumen are clear, and you can go about your errands entirely undisturbed by the memory of a long-dead academic whose career ended in exile.
The value is in understanding the contours of Bulgarian historical debate, which British expats almost never encounter unless they dig. Tsenov's story is a case study in how contested national origins become: the idea that Bulgarians "have always been here" appeals to a deep folk intuition about belonging, even when the evidence points elsewhere. If you've spent time in rural Bulgaria and heard an older Bulgarian insist that their ancestors built Thracian tombs or Roman roads, you're hearing an echo of Tsenov's theory, softened and domesticated into local pride. It's the kind of historical claim that travels well at a name-day lunch but collapses under scrutiny.
The parallel with British experience is instructive. Imagine a British historian in the 1930s arguing that the Anglo-Saxons never arrived from the Continent, that the English were actually indigenous Britons who'd been speaking Germanic languages since the Iron Age, and that King Arthur was ethnically continuous with modern Londoners. The claim would be dismissed instantly by the academy, the historian marginalised, and the theory relegated to fringe publishing. That's Tsenov's trajectory, except he had the resources to keep publishing in Germany and the misfortune to live through a regime change that turned professional exile into ideological condemnation.
For the kind of expat who enjoys knowing why certain Bulgarian surnames end in "-ov" or why Cyrillic looks the way it does, Tsenov is a reminder that the story of Bulgarian identity is still being argued over, even when the academic consensus is settled. Most Bulgarians under fifty have never heard of him. Those who have tend to know him as the historian the communists banned, which gives his ideas a countercultural appeal they don't deserve on scholarly merit. Worth knowing one name, one book title, and the rough shape of the controversy. It's the kind of conversational footnote that signals you've done more than skim the tourism board's version of Bulgarian history.
If you want the practical companion read, Shumen.UK homepage sits next to this one.
Sources and further reading
The biographical details and the account of Tsenov's academic disputes are drawn from the Bulgarian Wikipedia entry on Gancho Tsenov, which includes references to his 1910 magnum opus, his 1900 Berlin dissertation, and the critical reception from Zlatarski, Mutafchiev, and Nikov. The English Wikipedia article offers a shorter summary of his revisionist theory and its rejection by modern historiography. Tsenov's books remain in print through specialist reprints (Kraus Reprint reissued his Berlin dissertation in 1965), though they're primarily collectors' items rather than active scholarship.