Barbier's system was difficult, but it gave Louis an idea. He worked night after night to make a simple with dots. By age fifteen, he has finished his system. He showed it to other students in the school, and they loved it. They called it Braille, after him. At age seventeen, Louis graduated from the school and because a teacher there. In his free time, he copied books into Braille. Someone read to Louis while he made the dots. He copied the books of Shakespeare and other writers into Braille. The students read all the books and wanted more. The their own heavy books and would not let students read Braille books. Neventheless, the students continue d to read them. Finally, after twenty years, the school agreed to use Braille.