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Concept
Linguistic homeland
Summary
In historical linguistics, the homeland or Urheimat (ˈʊərhaɪmɑːt, from German ur- "original" and Heimat, home) 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.
Depending on the age of the language family under consideration, its homeland may be known with near-certainty (in the case of historical or near-historical migrations) or it may be very uncertain (in the case of deep prehistory). Next to internal linguistic evidence, the reconstruction of a prehistoric homeland makes use of a variety of disciplines, including archaeology and archaeogenetics.
There are several methods to determine the homeland of a given language family. One method is based on the vocabulary that can be reconstructed for the proto-language. This vocabulary – especially terms for flora and fauna – can provide clues for the geographical and ecological environment in which the proto-language was spoken. An estimate for the time-depth of the proto-language is necessary in order to account for prehistorical changes in climate and the distribution of flora and fauna.
Another method is based on the linguistic migration theory (first proposed by Edward Sapir), which states that the most likely candidate for the last homeland of a language family can be located in the area of its highest linguistic diversity. This presupposes an established view about the internal subgrouping of the language family. Different assumptions about high-order subgrouping can thus lead to very divergent proposals for a linguistic homeland (e.g. Isidore Dyen's proposal for New Guinea as the center of dispersal of the Austronesian languages). The linguistic migration theory has its limits because it only works when linguistic diversity evolves continuously without major disruptions. Its results can be distorted e.g. when this diversity is wiped out by more recent migrations.
Official source
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