1863, pertaining to the penmanship system devised by American penman Platt R. Spencer, the "Father of American Writing" (1800-1864), who c. 1840 began promoting an elliptical cursive style that became the standard U.S. business hand from 1850s to early 20c. It had an assured but joyous elegance lacking in the later Palmer letters. The word also can be a reference to English philosopher Herbert Spencer (1820-1903).