In his lifetime, Professor Dales probably knew more than Banerji or Marshall had known about ancient Mohenjo Daro because:
This archaeologist and professor at the University of Pennsylvania, during his extensive career in the Indus Valley, made the last great expedition to Mohenjo Daro in Pakistan, which dates back to 2500 BC.
All above allowed him to write more than eighty monographs and he co-authored the book "Excavations at Mohenjo-Daro, Pakistan: The Pottery."
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