Braille pattern, dots 1345

In letter-by-letter braille, ⠝ usually represents n.

Many alphabetic codes use dots 1, 3, 4 and 5 for the braille letter n. In contracted braille, a cell may stand for a word or letter group, so the code and neighboring cells matter. The on-screen braille symbol ⠝ shows that pattern but has no raised surface to feel.

Braille grew from Charles Barbier's night-writing, a tactile code for soldiers to read messages in darkness. Barbier demonstrated it in 1821. Louis Braille refined it into six-dot cells by 1824, published the system in 1829, and revised it in 1837.