International Day for the Universal Access to Information, also known as Access to Information Day, is observed worldwide every September 28. Established by the UNESCO General Conference in November 2015, it was first celebrated in 2016 and was inspired by International Right to Know Day, which originated in 2002 in Sofia, Bulgaria. The day was initiated by African civil society advocates from Angola, Morocco, and Nigeria who sought greater information transparency. The observance aims to highlight the importance of universal access to information and freedom of expression in achieving sustainable development goals. Activities typically include forums, conferences, and other events focused on these themes.