September 17, 1787: A More Perfect Union Is Formed

On September 17, 1787, within the revered walls of Independence Hall in Philadelphia, Pennsylvania, leaders finished the work of creating what’s been called the greatest government ever devised. After several months of intense deliberation, the framers of the United States Constitution signed a document…

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July 31, 1790: The First U.S. Patent Issued

On July 31, 1790, the fledgling United States took a decisive step toward promoting innovation and industrial progress: it issued its first patent. The recipient was Samuel Hopkins of Philadelphia, who secured legal recognition for a novel process of making potash—an essential ingredient in…

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