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.
Who invented sign language? Was it one person? The history of sign language is very interesting! If you are looking for the inventor of sign language, the one person who made up sign language, the answer might surprise you. The history of sign language goes all the way back to the fifth century BC, as written of by Socrates.