"And, by 39,999.5 years ago...we have evidence of tie-dyed t-shirts..."
...Most of the blade-like stone tools at Xiamabei had been downsized. Some stone tools show clear evidence of being hafted to a handle, and they were presumably used for hide scraping, whittling plant material and cutting animal tissue.
"When combined with records of relic distribution found during field excavations, we can vividly imagine an archaic human community 40,000 years ago -- relaxing around a fire, grinding stones for color, hafting stones for blades, and sharing food," Wang said.
"Forty-thousand years ago, it was a crucial point in the formation, diffusion and behavioral modernization of the Late Paleolithic revolution and early modern humans," said Yang Shixia, associate researcher at the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences.
"This analysis of human behavioral information obtained from the Xiamabei relics site provides us with evidence to understand behavioral changes of early modern humans in north China and even East Asia," Yang said.
"And, by 39,999.5 years ago...we have evidence of tie-dyed t-shirts..."