575 Years Before my Thesis

Domenico da Piacenza (1400–1470) De arte saltandi et choreas ducendi (c. 1450) — A Treatise on the Art of Dancing and Choreography 

Before Noverre, before Blasis, there was Domenico da Piacenza

Milan, sometime around 1450. The city has just survived eight months of siege. Its people, starving, finally opened the gates — not to an enemy, but to Francesco Sforza, a soldier of fortune who rode in as their new duke. Within months, he will start rebuilding a castle. Within years, his court will become one of the great stages of the Italian Renaissance.

Two hundred kilometers south, in Florence, a dome unlike anything built since antiquity has just closed over the city's cathedral — Brunelleschi's dome, completed without a single wooden scaffold reaching the ground, using geometry no one thought could hold. That same geometric thinking — depth, proportion, the mathematics of how things relate in space — is quietly reshaping how Italians see the world. It shows up in paintings. And, less obviously, it's about to show up in dance.

Somewhere in this world, an aging dancing master named Domenico da Piacenza — knighted for his service, Order of the Golden Spur, a rare honor for a man of no noble birth — sits down to do something almost no one before him had done. He starts writing down what dance actually is.

Not just which steps go where. He writes about misura — the dancer's own sense of timing, distinct from the music's. About maniera — the quality of movement itself, the difference between doing a step and dancing it. About aiere — a kind of lightness that can't quite be taught by counting.

He is trying to put into words something that, for as long as dance had existed, had only ever lived in bodies, passed from teacher to student, watched and copied, never written.

He didn't do this in peacetime comfort. Three years later, in 1453, Constantinople — the last remnant of the Roman Empire — falls to the Ottomans. Scholars flee west, carrying ancient Greek texts that will fuel decades of new learning across Italy. Around the same years, in Germany, a goldsmith named Johannes Gutenberg finishes building a press that will change, forever, what "writing something down" even means. Domenico's own treatise, though, still traveled the old way — copied by hand, manuscript to manuscript, student to student. His own students, Cornazano and Guglielmo Ebreo, would each write their own versions, calling themselves his devoted disciples.

None of them could have known they were starting something that would still matter 575 years later.

What this still teaches us

Domenico didn't write his treatise because dance needed saving — it was thriving, at the center of court life, more valued than at almost any point before or since. He wrote because he sensed that something is easy to forget: what lives only in the body dies with the body, unless someone, at some point, writes it down.

He did it at a moment when everything around him was in flux — empires falling, new rulers rising, entirely new tools for spreading knowledge appearing almost overnight. It's tempting to think great writing happens in calm, settled times. It rarely does. It happens when someone looks at a moment of change and decides: this is worth preserving, in words, before it's lost.

That's not a 15th-century problem. It's the same instinct behind every teacher who's ever tried to explain, out loud, what their bodies already know — and the same instinct behind a doctoral thesis, written 575 years later, arguing for exactly what Domenico started to put into words: that dancers have their own sense of timing, distinct from the music's (misura); that there's a different quality to movement itself — the difference between doing a step and dancing it (maniera); and, perhaps the most beautiful of Domenico's insights, that there's a kind of lightness in how a dancer moves and floats through the air that can't quite be taught by counting (aiere) — and maybe it cannot be taught at all. It must be felt, lived, and enjoyed — embodied in the singular way only dancers know how.

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