A century ago this week, Congress passed the Federal Reserve Act, creating a central bank for a nation that was only beginning its economic ascendance. This is the story of how it came to be, from a nearly catastrophic financial panic to secret meetings of plutocrats on the Georgia coast to the pitched battle in the halls of Congress, excerpted from "The Alchemists: Three Central Bankers and a World on Fire."

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The mustachioed man in the silk top hat strode to his private railcar parked at a New Jersey train station, a mahogany-paneled affair with velvet drapes and well-polished brass accents. Five more men — and a legion of porters and servants — soon joined him. They referred to one another by their first names only, an uncommon informality in 1910, intended to give the staff no hints as to who the men actually were, lest rumors make their way to the newspapers and then to the trading floors of New York and London. One of the men, a German immigrant named Paul Warburg, carried a borrowed shotgun in order to look like a duck hunter, despite having never drawn a bead on a waterfowl in his life.