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Right from the time of the Painted Grey Ware (PGW) culture, dating to c. 1200–600 bce, more than 210 archaeological sites in India have provided evidence of glass, but there has been no attempt to date the glass‐yielding layers by radiometric techniques. This has hampered the establishment of a chronology for the beginning and evolution of glass‐making in India. The site of Kopia was excavated by...
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