“Of course, historically, early ways of communicating developed well before there was any thought about the structure of a language, but since the earliest beginnings of an interest in grammar, its understanding has been influenced by people interested in both language and philosophy.”
“By the first century BC, the Greek, Dionysius Thrax, had defined grammar as something that permits a person to either speak a language or to speak about that language and how its components relate to each other.”