Franz Boas
Universal Grammar
Ferdinand de Saussure
“Language is a closed system of structural relations”
Noam Chomsky
J.R. Firth
In1944 the first professor of linguistics in Great Britain
Language is performed in different contexts, with different people, topics, for different purposes
Halliday
“Children learn language when its use has a meaningful purpose for them”
He established American descriptivist linguistic
Hymes
