Bimetallism is a monetary system that uses two metals, typically gold and silver, as the basis for currency. In this system, both metals are given a fixed ratio for exchange, allowing people to use either metal for transactions. This approach was intended to stabilize the economy by providing a more flexible money supply. Historically, bimetallism was prominent in the late 19th century, particularly in countries like the United States and France. Supporters believed it would prevent inflation and deflation, while critics argued it could lead to economic instability due to fluctuating metal values.