Article Detail International Mother Language Day Answer: 21 February Similar Questions : 1. Worldtheatre Day Answer: 27 March 2. World Youth Day Answer: 12 August 3. World TB Day Answer: 24 March 4. Sarvodaya day Answer: 30 January 5. World Diabetes Day Answer: 27th June 6. World Post Office Day Answer: 9 October 7. World Population Day Answer: 11th July Read more from - Important Days of Year