Every January 4 is celebrated the World Braille DayThe alphabetic relief system, designed to represent letters, punctuation marks, numbers, scientific graphics, mathematical symbols and music, …
Intercambios Internacionales, deportivos, linguísticos y culturales
Every January 4 is celebrated the World Braille DayThe alphabetic relief system, designed to represent letters, punctuation marks, numbers, scientific graphics, mathematical symbols and music, …