After Louis Braille's passing, Braille was finally accepted

Louis Braille was asked to return as a teacher's assistant once the course was finished. By 1833, he had received a full chair. Indeed, because of his academic standing, he was hired as a lecturer at the Royal Institution for Blind Youth, where his lessons were well-received by the students. He was an algebra, geometry, and history teacher. He benefited much from the new script Louis Braille created, and it also helped him gain the respect of his teachers. However, his script was not formally approved. The Royal Institute for Blinds' teachers believed that Louis' screenplay would make the blinds so independent that they would no longer want their guidance, even though the school's director adored and respected him. As a result, they never introduced Louis Braille's system to the students.

Louis sadly passed away at the young age of 43 after a protracted battle with a respiratory condition (believed to be tuberculosis). His linguistic system was finally approved by the Royal Institute for the Blind just two years later, in 1854, thanks to fervent student demand.

From there, braille spread throughout the rest of the world. In 1878, the World Congress for the Blind decided to establish braille as the standard for the blind on a global scale. Now, practically all languages in the world have adopted Braille.