By 2100. about half of existing languages will disappear, more precisely 3054 of them.
Keeping this fact in mind, Google.org has launched a project of Endangered Languages (Endangered Languages), which aims to preserve languages that are threatened with extinction.
The site commenced, there is an interactive map, where you can explore the lesser-known languages.
For more information, please see the attached video or www.endangeredlanguages.com.