When organizing the credit union it is important that people know each other and know the extent to which each of them is trustworthy. First central bank of credit unions appeared in 1876. Credit unions began to appear rapidly in many European countries. Credit union services are available only to its shareholders. To reduce the risk of default on loans members of the credit union shall the joint guarantee. In the case of default the shareholder - individual will respond with its property and, in addition, is jointly and severally liable with the credit union's commitments. To increase the number of credit unions in 1979 was adopted the corresponding law that serves as the legal basis of their activity. Today, the World Council of Credit Unions is represented as members four regional confederations and twelve national associations.