UNESCO declared Feb 21 as the International Mother Language Day 15 years ago

Strategy

Three principles guide UNESCO’s approach to languages and education in the twenty-first century. 

These are:

- Mother tongue instruction to promote inclusion in education and improve the quality of education by building on the knowledge and experience of both learners and teachers. UNESCO believes and supports findings of studies showing evidence that mother tongue instruction is a key factor for literacy and learning.

- Bilingual and/or multilingual education at all levels, to promote equality and reflect the diversity of languages in society, including literate environments, media and cyberspace. The main objective is to promote at least the use of three languages in education in multilingual contexts. 

- Promoting language as an essential part of intercultural education, to encourage understanding among peoples and build respect for human rights.

From the UNESCO Education website.

CELEBRATE YOUR MOTHER LANGUAGE EVERY DAY!