Unified international braille, or World braille, is an international convention established by the "International Congress on Work for the Blind" in 1878, intended to maintain intelligibility between the braille alphabets of the countries and languages of the world.
Unified international braille, or World braille, is an international convention first established by the "International Congress on Work for the Blind" in 1878, and further refined and expanded in 1951. The goal of braille uniformity is to maintain maximum affinity between the braille alphabets of the countries and languages of the world.