Credit unions attract people in the first place by the opportunity to get cash loan (credit) - quickly and relatively inexpensively. Like the credit cooperatives, credit unions form associations of a higher level, which are called corporate credit unions. Credit unions also differ from the traditional consumer cooperatives. Among the U.S. credit unions, there are three groups that differ in terms of assets, shareholders, and business services. Cooperation between credit unions, how they would not have been named, took place always, from the moment when the movement moved outside one credit union. Credit unions are competitors of savings institutions, adding interest on deposits of members. This applies to the shares, as well as to additional funds transferred to the account in the credit union. Historically, credit unions have grown from the experience of credit cooperatives, but they took the experience of organizations of mutual aid of citizens by moving methods of social self-protection from labor and toward consumption. Credit unions, like today's credit unions, emerged in the 19th century in Germany as a result of crop failure and famine. The right to use the services of the credit union have only its members. Credit Union - a non-profit financial institution specialized in mutual financial assistance by providing savings and credit services to their members.