Tradition holds that the eldest son of Genghis Khan, ruler of the Mongol Empire, founded the Golden Horde and was buried in Kazakhstan with his descendants. According to a statement released by the University of Wisconsin–Madison (UW–Madison), an international team of researchers led by Ayken Askapuli of UW–Madison analyzed genomes taken from remains found in four Golden Horde tombs in Kazakhstan, and determined that their ancestors could be traced to the Mongolian plateau through their Y-chromosomes. “We saw evidence that their Y-chromosomes are part of a branch of the C3* cluster,” Askapuli said. Some 20 years ago, fragments of DNA...