![](https://ichef.bbci.co.uk/news/1024/branded_news/FE84/production/_110765156_p0827kvx.jpg)
In the 1980s deaf children in Nicaragua invented a completely new sign language of their own.
It was a remarkable achievement, which allowed experts a unique insight into how human communication develops.
“What we learnt from Nicaragua about language still isn’t over,” says American linguist Judy Shepard-Kegl, who documented the emergence of Nicaraguan Sign Language.
Witness History: The stories of our times told by the people who were there.
Click Here to Visit Orignal Source of Article https://www.bbc.co.uk/news/stories-51372265