Bulgarian president, UNESCO chief call for promotion of linguistic diversity

People take part in an event dedicated to the Day of Bulgarian Enlightenment and Culture and of Slavonic Alphabet in Sofia, Bulgaria, on May 24, 2019. Bulgarian President Rumen Radev and Audrey Azoulay, Director-General of the United Nations Educational, Scientific, and Cultural Organization (UNESCO), here on Friday called for the promotion of linguistic diversity. (Xinhua/Zhan Xiaoyi)