21 mayo 1950 año - NARC founded

Descripción:

The National Association for Retarded Children is founded in May of 1950 with aims, "to promote the welfare of mentally retarded persons of all ages and to prevent mental retardation (Segal, par 1)."

Añadido al timeline:

1 oct 2017

0

0

600

SPE 400 Timeline

fecha:

YouTube: