The document summarizes the history and significance of International Mother Language Day. It notes that the day commemorates protests in 1952 in Bangladesh where students were killed while demanding recognition of Bengali language. Since then, February 21st has been observed to honor the martyrs. In 1999, UNESCO declared International Mother Language Day to recognize the importance of preserving languages and cultural identities. The day promotes the fundamental right of people to speak their own languages and inspires sacrifices for one's country.