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In India, regional nationalism is strongly tied to language. This is particularly the case in the Dravidian-speaking south, especially among speakers of Tamil - Tamil nationalists trot out all manner of absurd claims about the ancientness and purity and divine inspiration of the Tamil language, and about the great power held by the ancient Tamil people (until they were oppressed by the wretched Aryans from the north, of course).

I point this out to provide context for the following question: is there any actual evidence that Tamil (or any other Dravidian language) has a genetic relationship with Japanese?

My cursory reading on the matter has pointed me to Ono Susumu, who appears to have put forth a hypothesis claiming a genetic link - but that was back in the 1980s, and it appears that his hypothesis has been refuted (that said, I'm basing this on secondary writings - I haven't read the actual papers in question). I am unaware of any recent work that bolsters Ono's conclusions.

Yet, Indian news outlets keep on putting out new articles claiming Tamil-Japanese links (e.g. here and here), to the point that many educated Tamil non-linguists take the claims of a Tamil-Japanese genetic relationship as almost-fact. These beliefs are usually of the form "A long, long time ago, the mighty Tamil people traveled through China, crossed into Japan, and brought with them their language, which mixed with or displaced the language already present in Japan at the time" - and you can certainly see how this fits in with the Tamil nationalist narrative I mentioned above.

All that said, I'm left wondering if there's some linguistic (or historical) evidence I'm unaware of that makes claims of a Tamil-Japanese link more plausible.

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Normally I would vote to move this to linguistics.SE but I see it has votes and no complaints so if the community finds this on topic then I won't object. –  hippietrail May 22 at 1:47

1 Answer 1

Just given the archaeological record, any such Tamil claims seem unlikely in the extreme, unless the proponents of this view also intend to make the Tamil the ancestors of the modern Koreans.

In terms of material culture, the Yayoi people that became the modern Japanese were pretty clearly from continental Asia, and they entered the Japanese archipelago from the Korean peninsula. They had metalworking and horses, unlike the Jōmon, and Yayoi pottery is more similar to mainland pottery than the distinct and lavish designs seen in late Jōmon pottery (see towards the bottom of the Wikipedia article). The beginning of the Yayoi immigration is often estimated at around 300 BCE, some 300 years after the creation of some parts of the Tamil-language Sangam literature.

Linguistically, Old Tamil and Japanese do apparently share the past / non-past distinction in verbs, with no future tense, and they apparently also share a vaguely similar negative construction. There is also some distant similarity in the syntax, in that both are SOV languages with verbs at the end. However, past there, the languages don't seem all that related. Someone who is more familiar with Tamil and the Dravidian family may be able to elucidate more, but in general, the big differences I've noticed are: 1) substantially different consonant inventories; 2) grammatical person in verb constructions in Tamil, not found in Japanese at any stage; 3) grammatical gender in nouns in Tamil, also completely alien in Japanese; 4) no distinction between adverbs and adjectives in Tamil, which is more like German than Japanese; 5) an apparent distinction between definite and indefinite in Tamil (compare English "the" vs. "a"), which doesn't really happen in Japanese.

Genetically, the Yayoi had more in common with the modern Koreans and Han Chinese than they did with the Jōmon people that had been in the archipelago for at least the preceding 10,000 years (some estimates push the Jōmon arrival back to around 30,000 years ago). Some genetic testing suggests a similarity between the modern Japanese people and some Southeast Asian and/or Melanesian populations. It bears noting that Denisovan hominin descendants have been found in similar geographical locations, and given the original Denisovan finds in central Siberia, a counter-claim could be made that it wasn't ever the Tamil moving into Japan, but rather a common ancestor population moving and branching, with some branches possibly winding up in the Japanese archipelago and some branches possibly winding up in southern India. That said, this Denisovan genetic link may well have been via the Jōmon rather than via the Yayoi.

In summation, a Tamil-Japanese link seems tenuous at best. Sure, humans get around, so I would be entirely unsurprised if some Tamil-specific genetic link surfaces in the Japanese genome. That said, it appears to be extremely unlikely that the Tamil language or culture is in any substantive way related to the Japanese language or culture, unless some solid link can be found between a migrating Tamil-related population and the Yayoi, who may have originated from somewhere around Jiangsu Province in China.

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