On Nov 1, 2007 the United Nations called for one day each year to be designated as World Autism Day. On December 18,2007 the UN General Assembly designated April 2nd as World Autism Day. What is World Autism Awareness Day? It is a day that aims to increase people's awareness about persons living with autism spectrum disorder,especially children living with autism. It is a day to celebrate the unique talents and skills of persons living with autism and it is a day when individuals with autism are welcomed and embraced in community events around the world.