World Polio Day is observed on October 24. This observance was established by nongovernmental organization Rotary International in order to commemorate the birth of Jonas Salk, the developer of a vaccine against polio.
United Nations Day is observed every year on October 24. This observance was created to commemorate the anniversary of adoption of the Charter of the United Nations on October 24, 1948.
The United Nations General Assembly proclaimed October 24 to be World Development Information Day. This international observance was established on December 19, 1972.
There are many food holidays in the United States celebrating some certain food, dish or beverage. There is also Food Day, that is nothing like to the food holidays. This observance was initiated in 1975 by the Center for Science in the Public Interests to draw public attention to the problems of food in the USA. It's annually observed on October 24.