On this day in history, February 25th, 1862, the U.S. Congress passed the Legal Tender Act, authorizing the use of paper notes to pay the government’s bills. This ended the long-standing policy of using only gold or silver in transactions, and it allowed the government to finance the enormously costly Civil War long after its gold and silver reserves were depleted. The paper notes, called greenbacks, worked much better than expected. The government was able to pay its bills and, by increasing the money in circulation, the wheels of Northern commerce were greased. The greenbacks were legal tender, which meant that creditors had to accept them at face value. In 1862, Congress also passed an income tax and steep excise taxes, both of which cooled the inflationary pressures created by the greenbacks.
