International Mother Language Day
Fostering multilingualism for inclusion in education and society International Mother Language Day recognizes that languages and multilingualism can advance inclusion, and the Sustainable Development Goals’ focus on leaving no one behind. UNESCO believes education, based on the first language or mother tongue, must begin from the early years as early childhood care and education is the foundation of learning.

The theme of the Day this year, "Fostering multilingualism for inclusion in education and society", thus encourages us to support multilingualism and the use of mother tongues, both at school and in everyday life. This is essential, because when 40% of the world's inhabitants do not have access to education in the language they speak or understand best, it hinders their learning, as well as their access to heritage and cultural expressions. This year, special attention is being paid to multilingual education from early childhood, so that for children, their mother tongue is always an asset. — Audrey Azoulay, Director-General of UNESCO
Source: https://en.unesco.org/commemorations/motherlanguageday