A monetary system where currency units are directly convertible into fixed amounts of gold. Known for its anti-inflationary characteristics, the United States operated under this system until 1933.
A greenback is specifically a term for U.S. paper currency, named for the green ink used on the reverse side. It can also broadly refer to any paper money not backed by physical commodities like gold or silver.
A monetary system where the value of a country's currency is directly linked to a specific amount of silver.
