Morris Halle was a Latvian-born American linguist who was an Institute Professor, and later professor emeritus, of linguistics at the Massachusetts Institute of Technology. The father of "modern phonology", he was best known for his pioneering work in generative phonology, having written "On Accent and Juncture in English" in 1956 with Noam Chomsky and Fred Lukoff and The Sound Pattern of English in 1968 with Chomsky. He also co-authored the earliest theory of generative metrics, and developed the Distributed Morphology framework with Alec Marantz.