Education & Development
Learning with braille – more than just joining the dots
...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 F G H I/J K 3 L M N O P 4 Q R S T U 5 V W X Y Z Jump forward a few millennia to the France of Napoleon Bonaparte who wanted his soldiers to be able to communicate silently and in the dark. This led Captain Charles Barbier de la Serre to develop his...