This document outlines the development of Chomsky's theory of generative grammar from the 1960s-1980s. It shows that early critics doubted Chomsky's idea that syntax was the most important part of language and that meaning was less important. However, Chomsky and his supporters demonstrated that positing invisible movements in syntax could elegantly explain linguistic phenomena like question formation. This led to the development of key concepts in generative grammar like predicate phrases, X-bar theory, and auxiliary as an inflectional phrase. By the 1980s, Chomsky had established his theory of a unique, universal grammar as the primary explanation for human language ability.