establishing a writing system for a language, corpus planners have the option of using an existing system or designing a new one. The Ainu of Japan chose to adopt the Japanese language's katakana syllabary as the writing system for the Ainu language. Katakana is designed for a language with a basic CV syllable structure, but Ainu contains many CVC syllables which cannot easily be adapted to this syllabary. Therefore, Ainu uses a modified katakana system, in which syllable-final codas are consonants by a subscript version of a katakana symbol that begins with the desired consonant. An example of an original script includes the development of the Armenian script in 405 AD by St. Mesrop Mashtots. Though the script was modeled after the Greek alphabet, it distinguished Armenian from the Greek and Syriac alphabets of the neighboring peoples. Likewise, in the early 19th century, Sequoyah (Cherokee) designed an orthography for Cherokee in the Southeast of the present-day United States. It uses some Latin characters but also introduces new ones. Standardization The process of standardization often involves one variety of a language taking precedence over other social and regional dialects of a language. Another approach, where dialects are mutually intelligible, is to introduce a poly-phonemic written form that is intended to represent all dialects of a language adequately but with no standard spoken form. If one dialect is chosen, it comes to be perceived as supra-dialectal and the 'best' form of the language. Choosing the standard language has important social consequences, as it benefits the speakers whose spoken and written dialect conforms closest to the chosen standard. The chosen standard is generally spoken by the most powerful social group within society, and it is imposed upon other groups as the form to emulate, making the standard norm necessary for socioeconomic mobility. In practice, standardization generally entails increasing the uniformity of the norm, as well as the codification of the norm. By contrast, English has become standardized without any planning. The process began when William Caxton introduced the printing press in England in 1476. This was followed by the adoption of the south-east Midlands dialect, spoken in London, as the print language. Because of the dialect's use for administrative, government, business, and literary purposes, it became entrenched as the prestigious variety of English. After the development of grammars and dictionaries in the 18th century, the rise of print capitalism, industrialization, urbanization, and mass