The Coinage Act of 1873 or Mint Act of 1873 was a general revision of laws relating to the Mint of the United States. By ending the right of holders of silver bullion to have it coined into standard silver dollars, while allowing holders of gold to continue to have their bullion made into money, the act created a gold standard by default. It also authorized a Trade dollar, with limited legal tender, intended for export, mainly to Asia, and abolished three small-denomination coins. The act led to controversial results and was denounced by critics as the "Crime of '73".
By 1869, the Mint Act of 1837, enacted before the California gold rush or the American Civil War affected the monetary system of the United States, was deemed outdated.