Researchers have revealed remarkable 15,800-year-old engravings on a set of prehistoric artifacts from ... appear on stone "plaquettes" found at the ice age campsite of Gönnersdorf, which is ...
More than 90,000 stone artifacts from the Neolithic period have been discovered from the Shiren Cave relic site in the city of Hailin, Northeast China's Heilongjiang Province. The site ...