[...] Abbi (2006:93) is agnostic, stating that "current linguistic analysis does not, with any certainty, indicate any genetic relationship between Great Andamanese and the other two languages."
Stephen Wurm states that the lexical similarities between Great Andamanese and the West Papuan and certain languages of Timor "are quite striking and amount to virtual formal identity […] in a number of instances", but considers this to be due to a linguistic substratum rather than a direct relationship.
[7] Blevins (2007) proposes that the Ongan languages are related to Austronesian in an Austronesian–Ongan family, for which she has attempted to establish regular sound correspondences.
Although the existence of the islands and their inhabitants was long known to maritime powers and traders of the South– and Southeast–Asia region, contact with these peoples was highly sporadic and very often hostile.
From the 1860s onwards, the British established a penal colony on the islands, which led to the subsequent arrival of mainland settlers and indentured labourers, mainly from the Indian subcontinent.
At the start of the 21st century only about 50 or so individuals of Great Andamanese descent remained, resettled to a single small island (Strait I.).
This isolation has been reinforced by an outright hostility towards outsiders and extreme reluctance to engage in contact with them by South Andamanese tribes, particularly the Sentinelese and Jarawa.