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''For other meanings see Indo-European (disambiguation)

The Indo-European languages comprise a family of several hundred languages and dialects 449 according to the 2005 SIL estimate, about half (219) belonging to the Indo-Aryan sub-branch., including most of the major languages of Europe, as well as many spoken in Southwest Asia, Central Asia and South Asia. Contemporary languages in this family with more than 100 million native speakers each include Hindi, Spanish, English, Portuguese, Bengali, Russian, French, German and Punjabi. Numerous national or minority languages with fewer than 100 million native speakers also exist. Indo-European has the largest numbers of speakers of the recognised families of languages in the world today, with its languages spoken by approximately 3 billion native speakers.the Sino-Tibetan family of tongues has the second-largest number of speakers. The Indo-Iranian languages form the largest sub-branch of Indo-European.in terms of geography (stretching from the Caucasus to South India), as well as of variety (308 languages according to SIL) and of speakers (more than one billion).

Classification


The various subgroups of the Indo-European language family include (in historical order of their first attestation):

In addition to the classical ten branches listed above, several extinct and little-known languages have existed:

No doubt other Indo-European languages once existed which have now vanished without leaving a trace. Scholars cannot classify the fragmentary Raetian language with any certainty.

Specialists have postulated the existence of further subfamilies, among them Italo-Celtic and Graeco-Aryan. Neither of these has achieved wide acceptance. Indo-Hittite refers to the hypothesis that a significant separation occurred to split Anatolian from all the remaining groups.

Satem and Centum languages

Many scholars classify the Indo-European sub-branches into a Satem group and a Centum group. This terminology comes from the varying treatments of the three original velar rows. Satem languages lost the distinction between labiovelar and pure velar sounds, and at the same time assibilated the palatal velars. The centum languages, on the other hand, lost the distinction between palatal velars and pure velars. Geographically, the "eastern" languages belong in the Satem group: Indo-Iranian and Balto-Slavic (but not including Tocharian and Anatolian); and the "western" languages represent the Centum group: Germanic, Italic, and Celtic. The Satem-Centum isogloss runs right between the Greek (Centum) and Armenian (Satem) languages (which a number of scholars regard as closely related), with Greek exhibiting some marginal Satem features. Some scholars think that some languages classify neither as Satem nor as Centum (Anatolian, Tocharian, and possibly Albanian). Note that the grouping does not imply a claim of monophyly: we do not need to postulate the existence of a "proto-Centum" or of a "proto-Satem". Areal contact among already distinct post-PIE languages (say, during the 3rd millennium BC) may have spread the sound changes involved.

Suggested superfamilies

Some linguists propose that Indo-European languages form part of a hypothetical Nostratic language superfamily, and attempt to relate Indo-European to other language families, such as South Caucasian languages, Altaic languages, Uralic languages, Dravidian languages, and Afro-Asiatic languages. This theory remains controversial, like the similar Eurasiatic theory of Joseph Greenberg, and the Proto-Pontic postulation of John Colarusso.

History


See also: Proto-Indo-European, Historical linguistics, Glottochronology.

History of the idea of Indo-European

The first proposal of the possibility of common origin for some of these languages came from Marcus Zuerius van Boxhorn in 1647. Van Boxhorn suggested their derivation from "Scythian". However, the suggestions of van Boxhorn did not become widely known and did not stimulate further research.

The hypothesis re-appeared in 1786 when Sir William Jones first lectured on similarities between four of the oldest languages known in his time: Latin, Greek, Sanskrit, and Persian. Systematic comparison of these and other old languages conducted by Franz Bopp supported this theory, and Bopp's Comparative Grammar, appearing between 1833 and 1852 counts as the starting-point of Indo-European studies as an academic discipline.

Reconstructions and hypotheses

Scholars have dubbed the common ancestral (reconstructed) language Proto-Indo-European (PIE). They disagree as to the original geographic location (the so-called "Urheimat" or "original homeland") from where it originated. Two main candidates exist:
  1. the steppes north of the Black Sea and the Caspian Sea (see Kurgan)
  2. Anatolia (see Colin Renfrew).
Proponents of the Kurgan hypothesis tend to date the proto-language to ca. 4000 BC, while proponents of Anatolian origin usually date it several millennia earlier, associating the spread of Indo-European languages with the Neolithic spread of farming (see Indo-Hittite).

The Kurgan hypothesis

Marija Gimbutas originally suggested the Kurgan hypothesis in the 1950s. According to the Kurgan hypothesis, chalcolithic steppe cultures of the 5th millennium BC between the Black Sea and the Volga spoke early PIE.

Kurgan hypothesis timeline:

 

This article is licensed under the GNU Free Documentation License. It uses material from the "Indo-European languages".

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