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Google Logo for blind using Braille signage

Google Doodle for the Blind
Google unveiled a new Google Doodle celebrating the life and birth of Louis Braille. Google is in a way recognizing the efforts of great minds that have made the world more accessible to people with disabilities.

Braille invented a method used by blind and visually impaired people for reading and writing. Braille is read by passing one's fingers over characters which are made up of an arrangement of one to six embossed points.

Each Braille character or "cell" is made up of six dot positions, arranged in a rectangle containing two columns of three dots each. A dot may be raised at any of the six positions to form sixty-four combinations, counting the space, in which no dots are raised.

Braille has been adapted to almost every known language, from Albanian to Zulu.