 To achieve widespread acceptance, this encapsulation was based on popular usage.As the United States held a preeminent position in both industries during the 1960s, the standard was based on the already published "American Standard Code for Information Interchange", better known as ASCII, which included in the character set the 26 × 2 (uppercase and lowercase) letters of the English alphabet.Later standards issued by the ISO, for example ISO/IEC 10646 (Unicode Latin), have continued to define the 26 × 2 letters of the English alphabet as the basic Latin alphabet with extensions to handle other letters in other languages.