"In the year 2000," writes the author, "I initiated a large‐scale effort to identify the geologic sources from which peoples of the Indus Civilization (ca. 2600 to 1900 BC) acquired rock and mineral resources."
"The real heroes of this story of the discovery of the Indus civilization were such individuals–a discerning archaeologist like Sahni and a brilliant one like Banerji, who had within a few years of each other uncovered the relics entombed in Harappa and Mohenjo-daro respectively."
"The discovery of the rotational capabilities of the wheel was one of the most significant human inventions, and wheel-enhanced rotation is now pervasive in the tools and machines that we use in our everyday lives. Importantly, the wheel was a major contributor to a range of developments in craft production technology, perhaps most visibly in the various forms of potter’s rotational devices and wheels."