The International Chess Day is celebrated annually on July 20, the day the International Chess Federation (FIDE) was founded, in 1924.
The idea to celebrate this day as the international chess day was proposed by UNESCO, and it has been celebrated as such since 1966, after it was established by FIDE. FIDE, which has 181 chess federations as its members, organizes chess events and competitions around the world on this day. As recently as 2013, the international chess day was celebrated in 178 countries, according to FIDE President Kirsan Ilyumzhinov. On December 12, 2019, the UN General Assembly unanimously approved a resolution recognizing the day.