Book 6, again, knows of the west (including the Yavyävatp) but once mentions even the Ganga in an unsuspicious hymn [a hymn not suspected to be an ad… - Michael Witzel

Given the scholarly inclinations among the expatriate communities in North America we may expect a slew of new interpretations, in fact, a whole new cottage industry. Their impact will appear especially on the internet.

“In South Asia, relatively few pre-Indo-Aryan place-names survive in the North; however, many more in central and southern India. Indo-Aryan place-names are generally not very old, since the towns themselves are relatively late.” (p 104)

[the SarasvatI is] “prominent in Book 7: it flows from the mountains to the sea (7.95.2) - which would put the battle of 10 kings prior to 1500 BC or so due to the now well-documented dessication of the SarasvatI”. (p. 335)