Joseph Harold Greenberg was an American linguist, known mainly for his work concerning linguistic typology and the genetic classification of languages.
Nostratic is a hypothetical language macrofamily including many of the language families of northern Eurasia. Though a historically important proposal, in a contemporary context it is typically considered a fringe theory. Although the exact composition varies based on proponent, it typically comprises Kartvelian, Indo-European and Uralic languages; some languages from the similarly controversial Altaic family; the Afroasiatic languages; as well as the Dravidian languages.
The Northwest Caucasian languages, also called West Caucasian, Abkhazo-Adyghean, Abkhazo-Circassian, Circassic, or sometimes Pontic languages, is a family of languages spoken in the northwestern Caucasus region, chiefly in three Russian republics, the disputed territory of Abkhazia, Georgia, and Turkey, with smaller communities scattered throughout the Middle East.
The Paleo-Siberian languages are several language isolates and small language families spoken in parts of Siberia. They are not known to have any genetic relationship to each other; their only common link is that they are held to have antedated the more dominant languages, particularly Tungusic and latterly Turkic languages, that have largely displaced them. Even more recently, Turkic and especially Tungusic have been displaced in their turn by Russian.
Na-Dene is a family of Native American languages that includes at least the Athabaskan languages, Eyak, and Tlingit languages. Haida was formerly included, but is now considered doubtful. By far the most widely spoken Na-Dene language today is Navajo.
In historical linguistics, the homeland or Urheimat of a proto-language is the region in which it was spoken before splitting into different daughter languages. A proto-language is the reconstructed or historically-attested parent language of a group of languages that are genetically related.
The Yeniseian languages are a family of languages that are spoken by the Yeniseian people in the Yenisei River region of central Siberia. As part of the proposed Dené–Yeniseian language family, the Yeniseian languages have been argued to be part of "the first demonstration of a genealogical link between Old World and New World language families that meets the standards of traditional comparative-historical linguistics". The only surviving language of the group today is Ket.
The Austric languages are a proposed language family that includes the Austronesian languages spoken in Taiwan, Maritime Southeast Asia, the Pacific Islands, and Madagascar, as well as Kra–Dai and Austroasiatic languages spoken in Mainland Southeast Asia and South Asia. A genetic relationship between these language families is seen as plausible by some scholars, but remains unproven.
Merritt Ruhlen was an American linguist who worked on the classification of languages and what this reveals about the origin and evolution of modern humans. Amongst other linguists, Ruhlen's work was recognized as standing outside the mainstream of comparative-historical linguistics. He was the principal advocate and defender of Joseph Greenberg's approach to language classification.
Dené–Caucasian is a proposed language family that includes widely-separated language groups spoken in the Northern Hemisphere: Sino-Tibetan languages, Yeniseian languages, Burushaski and North Caucasian languages in Asia; Na-Dené languages in North America; and the Vasconic languages from Europe.
Sergei Anatolyevich Starostin was a Russian historical linguist and philologist, perhaps best known for his reconstructions of hypothetical proto-languages, including his work on the controversial Altaic theory, the formulation of the Dené–Caucasian hypothesis, and the proposal of a Borean language of still earlier date. None of his proposed macrofamilies have seen wide-scale acceptance in the linguistic community, though his proposals remain influential outside of academia. He was also the author of a widely respected reconstruction of Old Chinese.
In historical linguistics, a macrofamily, also called a superfamily or phylum, is a proposed genetic relationship grouping together language families in a larger scale classification. However, Campbell regards this term as superfluous, preferring "language family" for those classifications for which there is consensus and "distant genetic relationship" for those for which there is no, or not yet, consensus, whether due to lack of documentation or scholarship of the constituent languages, or to an estimated time depth thought by many linguists to be too great for reconstruction.
Eurasiatic is a proposed language macrofamily that would include many language families historically spoken in northern, western, and southern Eurasia.
Uralo-Siberian is a hypothetical language family consisting of Uralic, Yukaghir, and Eskaleut. It was proposed in 1998 by Michael Fortescue, an expert in Eskaleut and Chukotko-Kamchatkan, in his book Language Relations across Bering Strait. Some have attempted to include Nivkh in Uralo-Siberian. Until 2011, it also included Chukotko-Kamchatkan. However, after 2011 Fortescue only included Uralic, Yukaghir and Eskaleut in the theory, although he argued that Uralo-Siberian languages have influenced Chukotko-Kamchatkan.
John D. Bengtson is an American historical and anthropological linguist. He is past president and currently vice-president of the Association for the Study of Language in Prehistory, and has served as editor of the journal Mother Tongue. Since 2001 he has been a member/researcher of Evolution of Human Languages, an international project on the linguistic prehistory of humanity coordinated by the Santa Fe Institute. His areas of specialization include Scandinavian languages and linguistics, Indo-European linguistics, Dené–Caucasian (Sino-Caucasian) languages, and paleolinguistics.
Paleolinguistics is a term used by some linguists for the study of the distant human past by linguistic means. For most historical linguists there is no separate field of paleolinguistics. Those who use the term are generally advocates of hypotheses not generally accepted by mainstream historical linguists, a group colloquially referred to as "long-rangers".
Václav Blažek is a Czech historical linguist. He is a professor at Masaryk University and also teaches at the University of West Bohemia.
Dené–Yeniseian is a proposed language family consisting of the Yeniseian languages of central Siberia and the Na-Dené languages of northwestern North America.
The Proto-Afroasiatic homeland is the hypothetical place where speakers of the Proto-Afroasiatic language lived in a single linguistic community, or complex of communities, before this original language dispersed geographically and divided into separate distinct languages. Afroasiatic languages are today mostly distributed in parts of Africa, and Western Asia.
There have been various classification schemes for Southeast Asian languages.
