In the 1980s Deaf children in Nicaragua were sent to a new school that was supposed to help them learn finger spelling. Instead, they built up their own language, now known as Nicaraguan Sign Language. Plus: divers in Mexico find a cave that looked like it hadn't been visited before, only to find a link to civilization thousands of years ago.
The Amazing Story of Deaf Children in 1980s Nicaragua Inventing a Brand New Language (Twisted Sifter)
Canadian scuba diver in Mexico accidentally discovers vast, prehistoric industrial complex (National Post)
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