Around 500 BC, the Greek geographer Hecataeus of Miletus wrote down a name for the tribes living beyond the Greek world: Keltoi. A generation later Herodotus used it for the people at the headwaters of the Danube. It is the oldest name for the Celts that survives — and it was given to them by outsiders, because the Celts themselves wrote almost nothing down.

So other people told their story, and mostly told it wrong. Greek and Roman writers remembered wild men who fought without armor and sacked Rome. That version stuck for two thousand years, because the people who lose the writing lose the narrative.

The ground remembers something different. Celtic smiths are credited with inventing chainmail — armor so effective Rome copied it and issued it to the legions for centuries. Celtic wheelwrights built spoked wheels with shrunk-on iron tires a millennium before anyone called it engineering. The swirling metalwork of the La Tène style is some of the finest craftsmanship of the ancient world, and in early Irish society a master smith carried an honor price alongside the nobility.

The warrior and the artisan were not different people. The same hands held both hammers.

That is what we took the name for. Not the sword — the standard. A culture that couldn't publish a word about itself and still gets studied twenty-five centuries later, because what it built was good enough to outlast what everyone said about it.