Tamil Nadu

Tamil Naduarchaeological evidence points to this area being one of the longest continuous habitations in the Indian peninsula. In Attirampakkam near Chennai, archaeologists from the Sharma Centre for Heritage Education excavated ancient stone tools which suggest that a hominid population existed in the Tamil Nadu region somewhere around 1,000 years before homo sapiens arrived from Africa. A Neolithic stone celt (a hand-held axe) with the Indus script on it was discovered at Sembian-Kandiyur near Mayiladuthurai in Tamil Nadu. According to epigraphist Iravatham Mahadevan, this was the first datable artefact bearing the Indus script to be found in Tamil Nadu. According to Mahadevan, the find was evidence of the use of the Harappan language, and therefore that the "Neolithic people of the Tamil country spoke a Harappan language". The date of the celt was estimated at between 1500 BCE and 2000 BCE.

In Adichanallur, 24 km (15 mi) from Tirunelveli, archaeologists from the Archaeological Survey of India (ASI) unearthed 169 clay urns containing human skulls, skeletons, bones, husks, grains of rice, charred rice, and celts of the Neolithic period, 3,800 years ago. The ASI archaeologists have proposed that the script used at that site, Tamil Brahmi, is "very rudimentary" and date it somewhere between the 5th century BCE and 3rd century BCE.The early history of the people and rulers of Tamil Nadu is a topic in Tamil literary sources known as Sangam literature. Numismatic, archaeological and literary sources corroborate that the Sangam period lasted for about eight centuries, from 500 BCE to 300 CE. The recent excavations in Alagankulam archaeological site suggests that Alagankulam is one of the important trade centers or port cities of the Sangam Era.

Ancient Tamil Nadu contained three monarchical states, headed by kings called Vendhar and several tribal chieftaincies, headed by the chiefs called by the general denomination Vel or Velir. Still lower at the local level there were clan chiefs called kizhar or mannar. The kings were known as the Moovendar, the three crowned kings, and were the Cheras, Cholas and Pandyas. The Cheras controlled the western part of Tamilkam, what is today western Tamil Nadu and Kerala. The Pandyas controlled the south, what is today southern Tamil Nadu. The Cholas had their base in the Kaveri delta and controlled what is today northern Tamil Nadu. Although these dynasties were never conquered by outside powers, there were still significant diplomatic contacts between them and kingdoms to the north. They were mentioned on the pillars of Ashoka.These rulers sponsored some of the earliest Tamil literature. The oldest Sangam work we have knowledge of is the Tolkappiyam, a book of Tamil grammar. Most Sangam literature dealt with themes of love and war. In these poems, a glimpse of Tamil society at the time can be glimpsed. The land was fertile, and people pursued different occupations depending on what regions they were in. Their gods included figures such as Seyyon and Kotravai, who were worshipped at different places.