In the Pre-Soviet era, Commissariats for Invalid Welfare were responsible for services for disabled people. Welfare co-operatives, mutual aid societies, and charitable societies were also involved. Between 1929 and 1932, it was estimated that the disabled population was made up of 43% war veterans, 32% industrially injured, and the remainder through accidents and disability at birth. In March 1921, 775,000 wooden arms and legs for disabled soldiers were produced. In 1926, there were estimated 15 blind persons per 10,000 population. There were up to 21,000 disabled people in homes.[9]