May 21 was declared as the World Day for Cultural Diversity for Dialogue and Development by UNESCO in the year :

Keep practicing — related questions

• UNESCO was established in the year:
• The first International Mother Tongue Language day started since
• May 17 is observed as
• International Mother tongue day is observed on Feb 21 is based on
• World Music day
• World Environment Day is observed on
• The International Day for Elimination of Racial Discrimination is observed on:
• When was International Year of Peace celebrated?