While sifting through the ruins of an ancient building in Oman, archaeologists unearthed a pair of green-blue discs. The finds turned out to be a 4,000-year-old musical instrument — offering a “rare ...

The finds turned out to be a 4,000-year-old musical instrument — offering a “rare window” into the past ... late third millennium B.C. (around 2000 B.C.),” the study said.