Greek Sign Language (Greek: Ελληνική νοηματική γλώσσα) is the sign language of the Greek deaf community. It has been legally recognised as the official language of the Deaf Community in Greece by Law 2817 in 2000.The Greek Sign Language is estimated to be used by about 40,600 signers in 1986.Greek SL formed in the 1950s when American Sign Language and French Sign Language came together, with admixture from indigenous sign.