has emerged as a major source of Brahmi inscriptions dated between the 3rd and 1st centuries BCE.
Early Tamil scripts An early mention of a script for writing the
Tamil language is found in the
Jaina work
Samavayanga Sutta and
Pannavana Sutta where a script called
Damili is mentioned as the seventeenth of eighteen
Lipi (scripts) in use in India. Similarly, the tenth chapter of the
Lalitavistara, named
Lipisala samdarshana parivarta, lists Dravida-lipi and Dakshinya-lipi as two of sixty four scripts that Siddhartha (later the Gautam Buddha) learnt as a child from his
gurus in Vedic schools, a list that is found in both Indian Buddhist texts and its ancient Chinese translations. These relationship of early Tamil scripts to these
lipi mentioned in Jaina and Buddhist literature relationship is unclear. The pre-1974 work of Mahadevan had established 76 rock inscriptions in Tamil Brahmi from about 21 sites in Tamil Nadu, which states Kamil Zvelebil "establish obvious correlations" with what has been found in early Tamil bardic poems. Nagaswamy treats Tamil-Brahmi script to be synonymous with the Damili script in his publications. Artifacts such as inscribed
potsherds, coins or others are found in Tamil Nadu archaeological sites have
graffiti and inscriptions. According to Falk these supposed inscriptions are not Brahmi letters, but misinterpreted non-linguistic
Megalithic graffiti symbols, which were used in South India during the pre-literate era. , Tamil Brahmi Inscriptions
Research on the origin of Tamil-Brahmi Before the 1990s The origins and chronology of Tamil Brahmi are unclear. Several hypotheses have been proposed, with the views of epigraphist
Iravatham Mahadevan being generally accepted. Richard Salomon favors the Mahadevan theory. According to Kamil Zvelebil's chronology proposal of 1973, the earliest Tamil Brahmi inscriptions such as the Netunceliyan rock inscriptions at the Mangulam site were derived from Ashokan Brahmi that was introduced to the Tamil region around 250 BCE.
Conflicting theories about origin since 1990s Since the 1990s, pre-Ashokan dates have been proposed based on excavations and discoveries of graphite covered ancient remains in Sri Lanka. These include those found in
Anuradhapura in Sri Lanka, some of which have been dated to the 4th century BCE. The findings of Coningham et al based on the carbon dating of excavated potsherds led to the proposal that the Sri Lankan Brahmi developed before the Ashokan era, at least by the 5th to 4th century BCE, from where it came to Tamil region evolving into the Tamil Brahmi, and thereafter spread across South Asia due to trade networks. The graffiti and Brahmi found at sites in Sri Lanka are related, but not considered to be examples of Tamil-Brahmi. Archaeological teams sponsored by the government of Tamil Nadu have also been actively unearthing sites and reporting their results in local media that they have found shreds and items with Tamil Brahmi inscriptions. Between 2011 and 2013, for example, Rajan and Yatheeskumar published their findings from excavations at Porunthal and
Kodumanal in Tamil Nadu, where numerous graffiti and inscription fragments on archaeological pieces have been unearthed. The radiocarbon dates of paddy grains and charcoal samples found along with potsherds with inscriptions provided a radiometric date of about 520–490 BCE, which state Rajan and Yatheeskumar implies that the inscriptions too are from the same period. Based on Carbon-14 dating by an American laboratory, Rajan suggests Tamil Brahmi had been invented by 490 BCE, and states, "it is almost clear now that Ashoka did not the Brahmi script. The origin or evolution of a script is a social process and it could not be associated with a particular individual or dynasty." Linguist
David Shulman concurs that there are reasons to be skeptical of pre-Ashokan dates for Tamil-Brahmi, but recommends that one should keep an open mind. ==The script==