"The traditional view, that iron was brought into the subcontinent by invading 'Aryans' (Banerjee 1965), is wrong on two counts: there is no evidence of any knowledge of iron in the earliest Vedic texts (Pleiner 1971), where ayas stands either for copper or for metals in general, and the idea that the aryas of the Rigveda were invaders has become just as questionable. Wheeler's assertion that iron only spread to India with the eastward extension of Achaemenid rule (Wheeler 1962) is even more untenable in the face of radiocarbon dates from early iron-bearing levels."