Communicative Language Teaching (CLT) originated in the 1960s in response to the limitations of prior language teaching approaches that focused on grammar rules without developing communicative ability. CLT emphasizes using language for meaningful communication and having students engage in interactive activities. Key representatives who advocated for CLT include British applied linguists like Henry Widdowson and American sociolinguists such as Dell Hymes. The goal of CLT is to develop students' "communicative competence" through focus on interaction, problem solving, and performing language functions rather than just mastering structures.