The World Health Organization (WHO) was established on 7 April 1948. The first meeting of the World Health Assembly (WHA), the agency’s governing body, took place on 24 July of that year. The WHO incorporated the assets, personnel, and duties of the League of Nations’ Health Organization and the Office International d’Hygiène Publique, including the International Classification of Diseases (ICD). Its work began in earnest in 1951 after a significant infusion of financial and technical resources.
