5,500-year - old leather was found in Armenian cave . Footwear remains have been left as well . If so , it would join a number of other items that appear to have been placed as offerings . In 2 years since shoe was found , it has hardened .
5,500-year - old leather was found in Armenian cave . Footwear remains have been left as well . In 2 years since shoe was found , it has hardened .