books.google.com - This volume traces the history of English in North America during the past 400 years. Sixteen leading authorities in the field consider how the vocabulary (both standard and slang), grammar, spelling, and usage in both the standard language and regional and social dialects have evolved, and examine the...https://books.google.com/books/about/The_Cambridge_History_of_the_English_Lan.html?id=ia5tHVtQPn8C&utm_source=gb-gplus-shareThe Cambridge History of the English Language