Explanation

World Autism Awareness Day is observed annually on April 2 . Theme: The official United Nations theme for 2026 is "Autism and Humanity – Every Life Has Value" . Observance: This year marks the 18th annual observance of the day. Observance: This year marks the 18th annual observance of the day. Establishment: It was officially designated by the United Nations General Assembly in 2007 and was first observed in 2008 . Establishment: It was officially designated by the United Nations General Assembly in 2007 and was first observed in 2008 .