Previously, the Iron Age burial site of Adichanallur in southern Tamil Nadu had revealed an impressive collection of iron implements, currently housed in Chennai’s Egmore Museum, dated between 1000 BCE and 600 BCE.Chief Minister M.K. Stalin, while addressing the Tamil Nadu Assembly Monday, said: “It has been found that the date of the iron artefacts ranges from 2172 BCE to 1615 BCE. The results have reiterated the fact that the Iron Age of Tamil Nadu dates back 4,200 years, which is the oldest in India.”This finding has answered questions relating to the start of agricultural activity in Tamil Nadu, he...