Shorthand education in private career schools really escalated late in the century with the introduction of the Gregg system. The Gregg system, invented by Irish-born John Robert Gregg, differed from Pitman and other systems in that it used a phonetic alphabet, was based on the cursive movements of longhand, and utilized brief forms of common words. Gregg invented his system, which he called light-line phonography, in Scotland in 1888.
Source reprinted from In Service to America: AICS at 75.