Whyte notation
The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in "American Engineer and Railroad Journal". The notation counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, groups of numbers being separated by dashes. Other classification schemes, like UIC classification and the French, Turkish and Swiss systems for steam locomotives, count axles rather than wheels.
English Braille
Braille was introduced to Britain in 1861. In 1876, a French-based system with a few hundred English contractions and abbreviations was adopted as the predominant script in Great Britain. However, the contractions and abbreviations proved unsatisfactory, and in 1902 the current grade-2 system, called Revised Braille, was adopted in the British Commonwealth. In 1878, the ideal of basing all braille alphabets of the world on the original French alphabetic order was accepted by Britain, Germany, and Egypt (see International Braille). In the United States at the time, three scripts were used: non-braille New York Point; American Braille, which was reordered so that the most frequent letters were the ones with the fewest dots; and a variation of English Braille, which was reordered to match the English alphabet, assigning the values "wxyz" to the letters that, in France and England, stood for "xyzç". A partially contracted English Braille, Grade 1½, was adopted in Britain in 1918, and fully contracted Grade 2, with a few minor concessions to the Americans, was adopted in 1932. The concessions were to swap the British two-dot capital sign with the one-dot emphasis sign, which had generally been omitted anyway (as capitals had been in New York Point), to drop a few religious contractions from general usage, and to introduce a rule stating that contractions and abbreviations should not span 'major' syllable boundaries.