The lineage, plotted
What the map shows
The serious mainstream — Saint-Pierre, Bentham, Kant, the Bahá'í writings, Willkie — clusters in federation: a union of sovereign states, bound by law but free to leave. Not one ruler. A league.
Almost nobody serious wanted a single world sovereign. Dante's universal emperor (1313) is a medieval outlier; Wells briefly reached for a world state — and Kant expressly warned that one would decay into "a soulless despotism… the graveyard of freedom."
The AI-governance moment lives in the weakest tier — declarations and advisory bodies, nothing binding or global. The idea is 2,300 years old; the institutions for its newest problem barely exist.
Two layers, honestly
What is verified, and what is a frame
Verified. Every date, author, and claim on the timeline was fact-checked against primary and reference sources. The load-bearing corrections are real: Kant argued for a federation, not a world state, and warned the latter becomes "a soulless despotism"; Wells's "World Brain" was a global encyclopedia — a knowledge network — not a government; the Russell–Einstein Manifesto was anti-nuclear, not a call for world government; and as of 2025 no binding global AI authority exists — only declarations (Bletchley), advisory bodies (the UN's), and proposals (an "IAEA for AI," a "CERN for AI").
The frame. The four-band "form of authority" axis is my ordering, a lens laid over the record to make a real pattern legible — it is an interpretation, not a fact in the sources. A few placements are judgment calls (the EU straddles federation and limited authority; the Bahá'í writings blend the spiritual and the institutional). The lens is honest, but it is a lens.
The oldest lesson in the newest problem: the world has needed coordination for millennia and has almost never trusted a single ruler to provide it. The Concord next door is that lesson, made runnable. WBR · The World Brain · the lineage of the one-world idea · Legal domain · UD0