In 2010, scientists unearthed an ivory pendant from an abandoned Polish cave. Punctured with patterns reminiscent of moon cycles and mathematics, the artifact's origins eluded archaeologists -- until now. An international team of researchers just declared the relic to be 41,500 years old. That makes it the earliest piece of ornate jewelry ever found in Eurasia, and a wonderful reminder that art is timeless. Images and details of the discovery were published Thursday in the journal Scientific Reports. But beyond its aesthetic value, this ancient pendant also marks the first proof of post-Neanderthal civilization in the Polish region...