♦ International Mother Language Day is celebrated every year on February 21 to emphasise the importance of preserving and promoting linguistic diversity.

♦ 2025 marks the 25th anniversary of the UNESCO-declared observance.

♦ UNESCO declared February 21 as International Mother Language Day in 1999.

♦ This day was first celebrated in 2000. 

♦ 2025 theme: “Silver Jubilee Celebration of International Mother Language Day.”