Flavor Lines — VOVA.TODAY

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Research · July 20, 2026<br>Flavor Lines<br>A world map of dish names on restaurant signs: where plov ends and biryani begins — and who really draws these borders.<br>Open the project ↗

The question<br>Who really draws these flavor lines — mountains and rivers, or language?

OpenStreetMap lists more than two million places to eat across nearly the entire world. I look at each name, and whenever it contains the name of a dish, I colour the ground around it to match. The continents colour themselves in : solid ‘plov’ here, ‘biryani’ a few hundred kilometres away, then ‘pilaf’ farther on. The edges between those colours are lines that no one has drawn, yet everyone roughly understands .

Key findings<br>01In the Hindu Kush, plov ends and biryani begins .

02Most flavor lines follow culture, not terrain  — though the two sometimes coincide.

03Döner, shawarma and gyros all mean ‘turning’, each in a different language.

04kebap means döner in Germany and skewered meat in Turkey: one word, two dishes.

Why<br>I came across a post on Threads:

Strictly speaking, fried rice, plov and paella are different dishes, though they are related. But the observation holds: similar dishes have territories of their own , and one name gives way to another at the edge. No one had traced those edges. I wanted to measure them and put them on a map .

MythBusters for data memes: take a neat claim from the internet and test it against real data.

How it was made<br>A restaurant sign tells you exactly one thing: which word people use for a dish at that spot. It cannot tell you why this is plov country while biryani starts a few hundred kilometres away (though it leaves room for guesses). So the map answers ‘WHERE?’ and says nothing about ‘WHY?’ .

Everything below came from the data itself . The coverage is uneven: OpenStreetMap is far less popular in some places than others. The safest findings are the ones that survive that bias.

The main finding held up through every check: almost every flavor line follows a LANGUAGE border (or a cultural one, if you prefer), not the terrain . The clearest example is the Slavic dumpling wall : moving east, pierogi give way to varenyky, then pelmeni — right along the language borders.

A slice of the ‘Slavic wall’: pierogi → varenyky → pelmeni<br>Linguists call this an isogloss , so the project is in good company. Back in the 1880s, Georg Wenker sent 40 sentences to schools across the German Empire and drew the first dialect boundaries. He found something odd: the lines followed neither the Rhine nor the mountains. Instead, they fanned out along old political borders that everyone had forgotten .

Wenker’s dialect atlas near Stettin: the ‘ōan / ōrn / urn’ isoglosses fan out along old borders — a direct ancestor of Flavor Lines. © Forschungszentrum Deutscher Sprachatlas, CC BY-SA 4.0.<br>The ‘Rhenish fan’: dialect isoglosses follow forgotten political borders, not the Rhine. © Hans Erren, CC BY-SA 3.0.

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There is a nice precedent: two of the most viral maps in internet history were maps of food names  — America’s ‘soda vs pop vs coke’ map and Joshua Katz’s sandwich map (2013). Both cover one country, though, and both rely on surveys. Flavor Lines takes the same idea worldwide, using real signs .

One seam stands out: plov and biryani split along the Hindu Kush — perhaps the only place where a flavor line runs beside a mountain range . Even here, though, it is the people on either side who name the dish, not the ridge. The mountains hampered cultural exchange, so plov and biryani never blurred into each other.

The Hindu Kush: the plov–biryani line near 70° E

In China, fried rice is just lunch: the sign carries the restaurant’s name, not 炒饭. Out of 234,000 Chinese restaurants, those characters appear on just 129  — not 129,000, simply 129. The export layer reverses the pattern: Greece itself has only 9% of the world’s gyros shops, while the US has 38%; Germany has 51% of all places with döner in the name; nearly 90% of places named after khinkali are in Russian cities, and only 4% are in Georgia.

At home, a dish is just lunch. Abroad, its name on the sign becomes a flag.

The post-Soviet world has 97% of all places named ‘Shashlik’; Japan has 84% of the yakitori places, Indonesia 85% of the satay places, and Turkey 86% of the köfte places. My favourite discovery: döner, shawarma and gyros all mean ‘turning’ . Turkish dönmek means ‘to turn’, Arabic shawarma (via çevirme) means ‘turning’, and Greek γύρος means ‘a turn’ — the same Ottoman spit, named ‘the thing that turns’ independently in three languages.

A few more from the same family: pelmeni is not a Slavic word but the Finno-Ugric ‘ear-bread’ (Komi/Udmurt pelnyan). Paella means ‘pan’ , from the Latin patella: in the ‘plov → paella’ meme, the words are strangers; they merely rhyme. Souvlaki goes back to the Latin for ‘awl’. A single Persian polow travelled out into plov, pilav, pulao, pilaf and pelau.

The idea is shared;...