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date: 24 May 2018

Summary and Keywords

About 7,000 languages are spoken around the world today. The actual number depends on where the line is drawn between language and dialect—an arbitrary decision, because languages are always in flux. But specialists applying a reasonably uniform criterion across the globe count well over 2,000 languages in Asia and Africa, while Europe has just shy of 300. In between are the Pacific region, with over 1,300 languages, and the Americas, with just over 1,000. Languages spoken natively by over a million speakers number around 250, but the vast majority have very few speakers. Something like half are thought likely to disappear over the next few decades, as speakers of endangered languages turn to more widely spoken ones.

The languages of the world are grouped into perhaps 430 language families, based on their origin, as determined by comparing similarities among languages and deducing how they evolved from earlier ones. As with languages, there’s quite a lot of disagreement about the number of language families, reflecting our meager knowledge of many present-day languages and even sparser knowledge of their history. The figure 430 comes from Glottolog.org, which actually lists them all. While the world’s language families may well go back to a smaller number of original languages, even to a single mother tongue, scholars disagree on how far back current methods permit us to trace the history of languages.

While it is normal for languages to borrow from other languages, occasionally a totally new language is created by mixing elements of two distinct languages to such a degree that we would not want to identify one of the source languages as the mother tongue. This is what led to the development of Media Lengua, a language of Ecuador formed through contact among speakers of Spanish and speakers of Quechua. In this language, practically all the word stems are from Spanish, while all of the endings are from Quechua. Just a handful of languages have come into being in this way, but less extreme forms of language mixture have resulted in over a hundred pidgins and creoles currently spoken in many parts of the world. Most arose during Europe’s colonial era, when European colonists used their language to communicate with local inhabitants, who in turn blended vocabulary from the European language with grammar largely from their native language.

Also among the languages of the world are about 300 sign languages used mainly in communicating among and with the deaf. The structure of sign languages typically has little historical connection to the structure of nearby spoken languages.

Some languages have been constructed expressly, often by a single individual, to meet communication demands among speakers with no common language. Esperanto, designed to serve as a universal language and used as a second language by some two million, according to some estimates, is the prime example, but it is only one among several hundred would-be international auxiliary languages.

This essay surveys the languages of the world continent by continent, ending with descriptions of sign languages and of pidgins and creoles. A set of references grouped by section appears at the very end. The main source for data on language classification, numbers of languages, and speakers is the 19th edition of Ethnologue (see Resources), except where a different source is cited.

Keywords: languages, language family, language history, language classification, sign language, pidgin, creole

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