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Various definitions of the term world language have been proposed; there is no general consensus about which one to use. [4] [5]One definition proffered by Congolese linguist Salikoko Mufwene is "languages spoken as vernaculars or as lingua francas outside their homelands and by populations other than those ethnically or nationally associated with them".
The origin of language, its relationship with human evolution, and its consequences have been subjects of study for centuries.Scholars wishing to study the origins of language draw inferences from evidence such as the fossil record, archaeological evidence, contemporary language diversity, studies of language acquisition, and comparisons between human language and systems of animal ...
The highly diverse Nilo-Saharan languages, first proposed as a family by Joseph Greenberg in 1963 might have originated in the Upper Paleolithic. [1] Given the presence of a tripartite number system in modern Nilo-Saharan languages, linguist N.A. Blench inferred a noun classifier in the proto-language, distributed based on water courses in the Sahara during the "wet period" of the Neolithic ...
Duolingo Inc. [b] is an American educational technology company that produces learning apps and provides language certification.Duolingo offers courses on 43 languages, [5] ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo, and even constructed languages such as Klingon. [6]
Epic! is an American kids subscription-based reading and learning platform. It offers access to books and videos for targeted at children ages 12 and under. [1] The service can be used on desktop and mobile devices. [2] Epic! was founded in 2013 by Suren Markosian and Kevin Donahue [3] and launched in 2014. [4]
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In other conceptions, it may be the primary language of all speakers, or the only existing language. Some religious and mythological traditions state that there was once a single universal language among all people, or shared by humans and supernatural beings. In other traditions, there is less interest in or a general deflection of the question.
Cartopedia: The Ultimate World Reference Atlas; Celestia; Google Earth - (proprietary license); Gravit - a free (GPL) Newtonian gravity simulator; KGeography; KStars; NASA World Wind - free software (NASA open source)