Shepherds Spread Grain Along Silk Road 5,000 Years Ago

Nearly 5,000 years ago, nomadic shepherds opened some of the first links between eastern and western Asia. Archaeologists recently discovered domesticated crops from opposite sides of the continent mingled together in ancient herders' campsites found in the rugged grasslands and mountains of central Asia.

“Ancient wheat and broomcorn millet, recovered in nomadic campsites in Kazakhstan, show that prehistoric herders in Central Eurasia had incorporated both regional crops into their economy and rituals nearly 5,000 years ago,” said Micheal Frachetti, archaeologist at Washington University in St. Louis, Mo. and co-author of the study published in the Proceedings of the Royal Society B.

One of the grains found in Kazahkstan, bread wheat (Triticum aestivum), was cultivated in the Middle East by 6,000 years ago, but didn’t show up in East Asian archaeological sites until 4,500 years ago.

Likewise, another grain found in the shepherd’s camps, domesticated broomcorn millet (Panicum miliaceum), may have originated in what is now China 8,000 years ago, but didn’t appear in southwestern Asia until 4,000 years ago.

The nomadic shepherds may have been a crucial link across the vast expanse of steppe, desert and mountains that separated the agricultural and economic systems of eastern and western Asia.

Central Asian shepherds did more than transport grains. The archaeologists also found evidence that herders began farming millet, wheat, barley and legumes by 4,000 years ago. The discovery of this prehistoric agricultural activity in Turkmenistan and Kazakhstan pushed back the earliest know farming in the region by 2,000 years.

Read more at Discovery News