To begin with, the new conquerors and rulers…were of a different faith (Islam) from that of their predecessors… their principal achievements lay in a… - Irfan Habib

It is inherent in the unity of past and present that Marxist historiography must continuously turn to fresh aspects to explore and re-explore and fresh questions to answer... This examination must cover everything from general principles to specific facts, because both are all the time being brought into question by others. We have to answer them not by denunciation – always a bad counsellor – but careful scrutiny and investigation.

But it seems likely... that Sarasvati/Harakhvati was the name for the Helmand. Otherwise it is difficult to understand how Sarasvati could be put between Sindhu and Sarayu as the major intervening river in RV X, 64.9.

In one of his theses Marx said: 'Philosophers have so far interpreted the world. The point is to change it.' Marxism sees an innate unity between perception of the past and present practice. This unity implies continuous interaction: as time passes and history (human experience) lengthens, we draw greater lessons from it for the present; and as our present experience tells us more about the possibilities and limitations of social action, we turn to the past and obtain new comprehensions of it.