International Mother Language Day is celebrated every year on 21st February. The main purpose of the day is to promote the awareness of language and cultural diversity all across the world

The idea to celebrate International Mother Language Day was the initiative of Bangladesh. It was approved at the 1999 UNESCO General Conference and has been observed throughout the world since 2000.

UNESCO believes in the importance of cultural and linguistic diversity for sustainable societies. It is within its mandate for peace that it works to preserve the differences in cultures and languages that foster tolerance and respect for others.  

Languages, with their complex implications for identity, communication, social integration, education and development, are of strategic importance for people and planet. Yet, due to globalization processes, they are increasingly under threat, or disappearing altogether.

When languages fade, so does the world’s rich tapestry of cultural diversity. Opportunities, traditions, memory, unique modes of thinking and _expression_ — valuable resources for ensuring a better future — are also lost.

At least 43% of the estimated 6000 languages spoken in the world are endangered. Only a few hundred languages have genuinely been given a place in education systems and the public domain, and less than a hundred are used in the digital world.

https://en.armradio.am/2021/02/21/february-21-is-international-mother-language-day-2/