Who built it, none can now say. The ancestors of our ancestor’s ancestors might have known. But that knowledge—that name—was lost. It faded from memory. It even faded from myth. How it was built, none can now say. When and where it was built, none can now say.
But what the machine was and why it was is a story that still remains in the collective memory of the people who are descended from those who lived in the Age of the Arcanomen.