Education & Development
Learning with braille – more than just joining the dots
...history of the tactile writing language...As with so much else in our cultural heritage, the origins of braille lie in Ancient Greece. The historian and scholar Polybius invented what became known to cryptographers (code makers) as the Polybius Square, a system for encoding letters using a 5x5 grid. Polybius square with the modern English alphabet 1 2 3 4 5 1 A B C D E 2...