Keezhadi Civilisation
Keezhadi excavation site is a Sangam age settlement that is being excavated by the Archaeological Survey of India and the Tamil Nadu Archaeology Department.This site is located 12 km southeast of Madurai in Tamil Nadu, near the town of Keezhadi in Sivagangai district. Initially, this site was estimated to be from the period between 5th century BCE and 3rd century CE. Two samples were sent for carbon dating from this excavation site for confirmation in 2017. The results that came in July 2017 confirmed that the samples were from about 2,200 years ago (3rd century BCE).