I’ve been reading David Reich’s Who We Are and How We Got Here: Ancient DNA and the New Science of the Human Past with increasing fascination, and I’ve just gotten to the part about the original Indo-European speakers. The whole book is gripping, starting with the history of genome studies (which have exploded in the last few years) and the surprising new things that have been learned about ancient humans and their migrations and minglings, but this is neither Biochemistryhat nor Archeologyhat, so I’ve been eagerly awaiting the bit I could post about. It comes in Chapter 5, “The Making of Modern Europe”; Reich has been explaining how people of steppe ancestry arrived in Europe around 5,000 years ago and the various culture waves that entailed, with Yamnaya, Corded Ware, and Bell Beaker culture unexpectedly linked. Then he gets to Indo-European, describing Colin Renfrew’s influential 1987 hypothesis that the origin of the family “could be explained by one and the same event: the spread from Anatolia after nine thousand years ago of peoples bringing agriculture,” and David Anthony’s counterargument, the “steppe hypothesis—the idea that Indo-European languages spread from the steppe north of the Black and Caspian seas.” I’ll quote most of the rest of the chapter:
His key observation is that all extant branches of the Indo-European language family except for the most anciently diverging Anatolian ones that are now extinct (such as ancient Hittite) have an elaborate shared vocabulary for wagons, including words for axle, harness pole, and wheels. Anthony interpreted this sharing as evidence that all Indo-European languages spoken today, from India in the east to the Atlantic fringe in the west, descend from a language spoken by an ancient population that used wagons. This population could not have lived much earlier than about six thousand years ago, since we know from archaeological evidence that it was around then that wheels and wagons spread. This date rules out the Anatolian farming expansion into Europe between nine thousand and eight thousand years ago. The obvious candidate for dispersing most of today’s Indo-European languages is thus the Yamnaya, who depended on the technology of wagons and wheels that became widespread around five thousand years ago. […]
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