How did they "pay"? I have often wondered how this took place in practice, assuming there was no currency as we understand it. How were luxury / prestige items such as gold and gemstone jewelery obtained by those who had access to them. How did ordinary people trade and obtain necessities and adornments, eg pots, cloth, food, bangles and everyday jewelery? What was the role of the rulers?

Submitted by Manzoor

Jane McIntosh
I don't think that there was a single cause of the Indus civilization's end; rather it was the cumulative effect of a number of factors:

Last year I visited gallery of Harappan Civilization at the National Museum, New Delhi. Among the artifacts, I saw a small 'chillum' (hand-held twin pipe) similar to that 'sadhus' (wandering Hindu monks) use in smoking 'charas' (hand-made hashish) and 'ganja' (marijuana). Discussing the history of cannabis, the Wikipedia quotes that charred cannabis seeds were found in a 3rd millenium BC grave in Romania. Submitted with illustration by Vasant Dave

"I'd like the experts to confirm or refute that the Indus Valley civilization was a matriarchy following the scientific definition given by Heide Goettner-Abendroth in Modern Matriarchal Studies: Definitions, Scope and Topicality." Asked by Sede Decana Método DeRose and Luciano

Richard Meadow

There is an image common to the Indus, Ancient Egyptian and Mesopotamian river cultures of a female deity standing with arms outstretched, holding two apparently deadly animals at bay. In the case of the Indus, the animals have been identified as 'tigers', in Ancient Egyptian and Mesopotamian they are crocodiles. What are the current theories on the iconography(ies) of these images; the reasons for their presence in three civilizations and what their presence might indicate in terms of the interrelationships between these cultures? Submitted by Ian Whitney

Jane McIntosh
Decipherment of the Indus script would be helpful – if nothing else, it should conclusively settle the non-Aryan/Aryan dispute – but the amount of information this would yield is severely limited.

We can say that the bulk of the development of the Harappan civilization happened in the Indus Valley itself. What can you comment about their relationship with other cities in Anatolia after the discovery of the city of Catal Huyuk by the English archaeologist James Mellaart in 1958. Is Catal Huyuk a more primitive precursor of this civilization or they parallel developments? Submitted by Martin Piattini Velthuis

Jane McIntosh

Why were there (terracotta) balls on the Citadel wall in Mohenjo-Daro? Have any more statues been found or anything like a temple? Have you found out any more information on the Indus leaders or their names? Submitted by Gharial Abramnova from school student questions