

This they did by distributing Spencer's previously unpublished book, Spencerian Key to Practical Penmanship, in 1866. Spencer never saw the great success that his penmanship style enjoyed because he died in 1864, but his sons took upon themselves the mission of bringing their late father's dream to fruition. Spencerian script even became the official hand of government clerks.

He quickly turned out graduates who left his school to start replicas of it abroad, and Spencerian script thus began to reach the common schools. Spencerian script was developed in 1840 and began soon after to be taught in the school Spencer established specifically for that purpose, in doing so replacing a form of Copperplate script, English roundhand, which was the most prominent script being taught in America. While likely originally writing and developing the script with a quill pen, Spencerian script's evolution is tied to the availability and development of higher-quality steel pens. Spencer, inspired by the forms that he saw of smooth pebbles in a stream, aimed to create a graceful script to resemble those shapes. Platt Rogers Spencer, whose name the style bears, used various existing scripts as inspiration to develop a unique oval-based penmanship style that could be written very quickly and legibly to aid in matters of business correspondence as well as elegant personal letter-writing. Garfield called the Spencerian script, "the pride of our country and the model of our schools." History Spencerian script, an American form of cursive handwriting, was also widely integrated into the school system as an instructional method until the "simpler" Palmer Method replaced it. Spencerian script is a script style based on Copperplate script that was used in the United States from approximately 1850 to 1925, and was considered the American de facto standard writing style for business correspondence prior to the widespread adoption of the typewriter.

Enduring example, twenty years after Platt Rogers Spencer's death, of Spencerian script from 1884 from the Gem City Business College of Quincy, Illinois
