The name "Rotary" is derived from the early practice of rotating meetings among members' offices. Under its principal motto "Service Above Self," Rotary clubs are comprised of businessmen and professionals in local communities. Rotary International has rendered a variety of services during the past century in such areas as diseases, hunger, illiteracy, education, the environment, and others. Furthermore, the Rotary has invested 600 million dollars since 1985 in the effort to eradicate polio from the world. As a result, polio is expected to be eradicated in 2005.