Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Credit unions encourage savings of citizens, setting compensation payments (interest) on savings and provide from these savings loans to their members. Until the 70's there was a proliferation of the U.S. credit unions due to the increase of their number and the number of shareholders, although it must be acknowledged that there was also and a qualitative growth. Income derived from the provision of services to its members, does not become the profit of credit union and is distributed among its members in proportion to their savings. Until the mid-XX century, credit unions in the United States had little assets that did not exceed, as a rule, 100 thousand dollars The supreme body of the World Council of Credit Unions is the Assembly, which elects the president and the board of directors of WOCCU.