It refers to a method of writing and reading that is used by means of a tactile code, created mainly for those individuals with visual disabilities. This system was created in the middle of the 19th century by the Frenchman Louis Braille who will go blind after a domestic accident as a child. Later, at the age of 13, the director of the school where he was studying presented him with a method of literacy at that time innovative, created by Charles Barbier for military purposes and whose objective was the transmission of orders to the soldiers preventing the position from being discovered of the same, after a while Braille realized that such a system had potential, so he decided to modify it, resulting in the famous Braille method.
This system consists of the use of six points that are distributed in different ways, and can even be considered as a kind of binary system. It should be noted that the Braille method is an alphabet and not a language, this alphabet is recognized worldwide and with it it is possible to express both letters and numbers and even signs, which makes it extremely complicated. The elements used in this alphabet are a total of 256 characters, most of which are closely related to the one that precedes it or that follows it with respect to meaning.
Each and every one of the characters is based on the six points mentioned above, which must be arranged in a pair of rows parallel to each other. Depending on the meaning that the writer wants to give, some points may be standing out so that when they come into contact with him, the correct meaning of what is reflected there can be identified. Despite the fact that Braille writing is a system considered as universal, it is possible that it may present modifications depending on the language of the person who uses it, for which letters can be included or replaced by others that are used in a specific language, this can be seen in languages such as Mandarin or Japanese where the sounds can be mixed with Braille.