Question

why was celebrated on world health day

Answer 1

World Health Day:  The Assembly decided to celebrate 7 April of each year, with effect from 1950, as the World Health Day. The World Health Day is held to mark who's founding, and is seen as an opportunity by the organization to draw worldwide attention to a subject of major importance to global health each year.   

Answer 2

hey dear

here is your answer

world health day is celebrated on 7 April