American Foundation for the Blind York City headquarters. Louis Braille was the Frenchman who invented the raised dot code that bears his name. On January 4, 2009, the 200th anniversary of his birth, AFB created an online gallery that includes pictures of him and digitized books and articles. AFB's main headquarters is in Arlington, Virginia. Other offices include New York City; Dallas, Texas; and Huntington, West Virginia. In 2012, AFB added VisionAware to its family of sites in partnership with the "Reader's Digest" Partners for Sight Foundation. The site folded in content from AFB's Senior Site, with new information and resources for adults of all
Braille Braille has adopted eight-dot cells for general use; for example, it adds a dot below each letter to derive its capital variant. Braille was the first writing system with binary encoding. The system as devised by Braille consists of two parts: Within an individual cell, the dot positions are arranged in two columns of three positions. A raised dot can appear in any of the six positions, producing sixty-four (2) possible patterns, including one in which there are no raised dots. For reference purposes, a pattern is commonly described by listing the positions where dots are raised, the positions being