Similarities between the Dravidian languages and Korean was first noted by French missionaries in Korea.Ohno caused a stir in Japan from his theory that Tamil constituted to the lexical strata of both Korean and Japanese, which was hyped in the 1980s but quickly abandoned after. However Cliffinger's method was professional and his data reliable, hence, Ki-Moon Lee, Professor Emeritus at Seoul National University, opines that his conclusion could not be ignored and that it should be revisited. According to Homer B. Hulbert, many of the names of ancient colonies of southern Korea were the exact counterpart of Dravidian words. The Karak Kingdom of King Suro was named after the proto-Dravidian meaning 'fish'.
Susumu Ōno, and Homer B. Hulbert propose that early Tamil people migrated to the Korean peninsula. Clippinger presents 408 cognates and about 60 phonological correspondence pairs. Cliffinger found that some cognates were closer than others leading him to speculate a genetic link which was reinforced by a later migration. This view was confirmed by the Centre for Korean Studies at the University of Hawaii. Both languages are agglutinative, follow the SOV order, nominal and adjectives follow the same syntax, particles are post positional, modifiers always precede modified words are some of the common features.
However typological similarities can happen by chance; for instance, if two languages were agglutinative by random chance most of the other typological features like SOV order, post-positional particles, modifiers preceding modified words might also be similar (this is the general trend seen in most known agglutinative languages). The lack of statistically significant number of cognates, the lack of anthropological and genetic links, and that both regions are geographically isolated can be used to dismiss this proposal.