This document discusses standards, codification, and varieties of World Englishes. It notes that while English varies regionally and within groups, standards of English are defined in grammars and dictionaries. Standard British English developed over the 12th century and was associated with privileged southern English private schools. Similarly, American English emerged as its own variety. The document also discusses the positions of Quirk and Kachru on models of English spread, and debates standards, teacher education, and notions of foreignness in teaching English as a foreign language.