International Francophonie Day (French: Journée internationale de la Francophonie), which celebrates the French language and Francophone culture, is celebrated in the International Organization of La Francophonie's 77 member states every March 20. There is over 200 million French speakers on Earth.
The date celebrates the signing of the Niamey Convention in Niger on the 20th of March 1970. The convention established the Agence de Coopération Culturelle et Technique, the precursor to the International Organization of La Francophonie.