Bimetallism

Bimetallism is an economic system in which two different metals, usually gold and silver, are used as official currency. In this system, when people want to buy something they can pay with either gold or silver coins, depending on which one is more valuable or plentiful at the time. In this way, bimetallism makes it easier for people to make and receive payments without worrying about the value or amount of the coins they are using.