Sejong the Great 세종대왕 (1397 –1450) - King of the Joseon dynasty of Korea – He reinforced Confucian...
Ram Khamhaeng the Great รามคำแหงมหาราช (or Pho Khun Ram Khamhaeng) – King of the Phra Ruang dynasty, ruling...
Sequoyah ᏍᏏᏉᏯ (Ssiquoya) (1770—1843) - George Gist or George Guess - Creator of a Cherokee syllabary.
Louis Braille (1809-1852) - Inventor of a system of reading and writing for use by the blind or...
Cangjie 仓颉 - A legendary inventor of Chinese characters during the era of the Yellow Emperor.
Mesrop Mashtots (362-440) - A theologian, inventor of the Armenian alphabet c. 405 AD.
The City of the Sun (La città del Sole) - Utopian work (1602) by Tommaso Campanella.
Utopia (1516) - A fictional island by Thomas More.
For a neurodiversity...
Nko alphabet - A writing system for the Manding languages, created by Solomana Kante (1949).
Osman Yusuf Kenadid - Inventor of the Osmanya alphabet for the Somali language, between 1920 and 1922.
Hussein Sheikh Ahmed Kaddare (1934-2015) - Creator of a script for the Somali language, invented in 1953.
Albania ... Many alphabets on the course of time.
Claude Chappe (1763-1805)... inventor of a semaphore system (1791).
Saints Cyril (826–869) and Methodius (815–885): "Apostles to the Slavs" - Creators of the Glagolitic alphabet.
Frédéric Bruly Bouabré (1923-2014) – An Ivorian artist, creator of the Bété syllabary.