1) Generative grammar was first defined by Noam Chomsky in 1957 as a set of rules for producing grammatical sentences in a language based on universal grammar principles innate to humans.
2) Generative grammar includes finite state grammar, phrase structure grammar, and transformational grammar, which identifies rules that govern sentence structure beneath aspects like word order.
3) The document discusses differences between traditional grammar, focused on Latin instruction, and generative grammar, conceived to describe language in a way computers could process human language. It also provides the writer's positive reflection on learning about generative grammar.