24 October: World Polio Day

World Polio Day is celebrated every year on 24 October.
It was initiated by Rotary International over a decade ago to commemorate the birth of Jonas Salk, who developed a vaccine against poliomyelitis.
The theme for 2021 observation is “One Day. One Focus: Ending Polio – delivering on our promise of a polio-free world!”
India received polio-free certification from the World Health Organisation (WHO) on 27 March 2014.