1992, at the conclusion of the United Nations Decade of Disabled Persons (1983-1992), the General Assembly proclaimed 3 December as the International Day of Disabled Persons (resolution 47/3). The Decade had been a period of raising awareness and enacting measures to improve the situation of persons with disabilities and to provide them with equal opportunities. Subsequently, the Assembly appealed to Member States to highlight the observance of the International Day in order to further integrate people with disabilities into society (resolution 47/88).
Source: United Nations Website