Membership in the credit union is voluntary and is open to all citizens bound by with joint work or residence, who wished to create a credit union to use its services and are willing to take on relevant commitments and responsibilities. Principles of cooperative democracy and interaction were adequate to the purposes for which people joined credit unions. First Credit Union was savings unprofitable institution, or rather credit cooperative, providing services to its members. National Credit Union Insurance Fund was created by Congress in 1970 to insure deposits of credit union members in the amount of 100 thousand dollars. Credit unions, like today's credit unions, emerged in the 19th century in Germany as a result of crop failure and famine.