Education & Development
Learning with braille – more than just joining the dots
...communicate silently and in the dark. This led Captain Charles Barbier de la Serre to develop his Ecriture Nocturne (night reading) system. Barbier used a 6x6 grid with raised dots to represent the letters (and some common pairs of letters) of the French alphabet. [Barbier's sonography ('night writing')] Sonography In 1821 Barbier demonstrated his system at the Institut...