US Congress Adopts Dollar as Monetary Unit
Following the American Revolutionary War, the young United States faced economic disarray with a patchwork of state currencies, foreign coins, and depreciated continental paper money undermining trade and public confidence. On August 8, 1786, the Confederation Congress in session unanimously resolved to establish the dollar, based on the Spanish milled dollar, as the official unit of account and currency for the nation. This decision standardized weights, measures, and coinage values across the states, drawing on decimal divisions for simplicity in calculations. The move laid foundational groundwork for a unified national economy ahead of the Constitution's ratification. It reflected debates over monetary policy that had persisted since independence.
Why it matters: Adoption of the dollar created a common currency framework essential for interstate commerce and federal revenue collection in the early republic. It influenced the Coinage Act of 1792 and the establishment of the U.S. Mint, shaping American economic identity. The choice promoted decimal simplicity still used today and reduced reliance on foreign coins.