The first attempt at a national currency was during the American Revolutionary War. In 1775, the Continental Congress, as well as the states, began issuing paper currency, calling the bills "Continentals". The Continentals were backed only by future tax revenue, and were used to help finance the Revolutionary War. Overprinting, as well as British counterfeiting, caused the value of the Continental to diminish quickly. This experience with paper money led the United States to strip the power to issue Bills of Credit (paper money) from a draft of the new Constitution on August 16, 1787, as well as banning such issuance by the various states, and limiting the states' ability to make anything but gold or silver coin legal tender on August 28.