For nearly eighty years, the U.S. was without a central bank after the charter for the Second Bank of the United States was allowed to expire. After various financial panics, particularly a severe one in 1907, some Americans became persuaded that the country needed some sort of banking and currency reform that would, when threatened by financial panics, provide a ready reserve of liquid assets, and furthermore allow for currency and credit to expand and contract seasonally within the U.S. economy.