In the U.S., credit unions have a clear organizational structure. All credit unions belong to one or the other parent credit union (there are 35 of them in the U.S.). First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. The main activities of credit unions, aimed at the organization of mutual aid and social support of citizens is not intended to profit. Credit unions appeared in England in the 19th century. In 1844 a group of workers from Rochdale established the first cooperative. Taking a decision to join a credit union, citizens create an organization through which they participate in the shared savings by mutual crediting and joint (collective) use of personal savings. The right to use the services of the credit union have only its members.