verb (used with object), inferred, inferring. 1. to derive by reasoning; conclude or judge from premises or evidence: They inferred his displeasure from his cool tone of voice. 2. (of facts, circumstances, statements, etc.) to indicate or involve as a conclusion; lead to. 3. to guess; speculate; surmise.
The modern recorded history of sign language began in the 17th century in Spain, in part with Bonet. In 1620, Juan Pablo Bonet published ReducciÃ³n de las letras y arte para enseÃ±ar a hablar a los mudos (Summary of the letters and the art of teaching speech to the mute) in Madrid. Considered the first modern treatise of the phonetics of sign language and the use of sign language to teach speech to the deaf, this book depicted Bonet's form of a manual alphabet. His intent was to further the oral and manual education of deaf people in Spain.
History of ASL. Although the first record of a signed language was in the early 17th century, signed languages probably existed as long as there were civilizations. Sign languages had existed whenever there were deaf people.Even though American Sign Language (ASL) has strong roots in French Sign Language, it is deeply influenced by many events preceding the more formalized sign languages that flourished since the 1700âs.ign languages had existed whenever there were deaf people. Even though American Sign Language (ASL) has strong roots in French Sign Language, it is deeply influenced by many events preceding the more formalized sign languages that flourished since the 1700âs.