Lecture 17: Dialects—The Standard as Token of the Past
When a dialect of a language is used widely in writing and literacy is high, the normal pace of change is artificially slowed, as people come to see "the language" as on the page and inviolable. This helps create diglossia.
Lecture 18: Dialects—Spoken Style, Written Style
We often see the written style of language as how it really "is" or "should be." But in fact, writing allows uses of language that are impossible when a language is only a spoken one.
Lecture 19: Dialects—The Fallacy of Blackboard Grammar
Understanding language change and how languages differ helps us see that what is often labeled "wrong" about people's speech is, in fact, a misanalysis.
Interesting to hear about the early “canonization” of English grammar by Robert Lowth and Lindley Murray.