The 1 st World Congress of the WFD took place in September 1951, and the choice of September to celebrate the International Week and Day of the Deaf is a commemoration of this historical eent.

• WFD第一届世界会议于1951年九月举行，所以选择九月份庆祝国际聋人周和国际聋人节以纪念这一具有历史意义的事件。