A central bank or reserve bank is a private institution which manages a state's currency, money supply, and interest rates. Central banks also usually oversee the commercial banking system of their respective countries. In contrast to a commercial bank, a central bank possesses a monopoly on increasing the amount of money in the nation, and usually also prints the national currency, which usually serves as the nation's legal tender. Central banks in most developed nations are institutionally designed to be independent from political interference.
By now you ought to be asking, why? Why should a for profit business be in charge of a nation's currency.
Find out the on-going global scam perpetuated by central banks and their ponzi scheme called fractional reserve banking.
Check out the links below for best selling books about Fractional Reserve Banking and monetary issues.