Braille
type: Concept
definition: Braille, described in this entry, is a useful system for reading and writing by touch that was developed by Louis Braille in 1829. Before that time, some of the available systems attempted to mimic the shapes of letters. [Source: Encyclopedia of Perception; Braille]
broader: written language
broader: skin and body senses
broader: reading aids

written language
type: Concept
narrower: Braille

skin and body senses
type: Concept
narrower: Braille

reading aids
type: Concept
narrower: Braille

concepts
type: Collection
type: ConceptGroup
member: Braille