Carbon dating of organic materials from archaeological sites has been calibrated for the variations in the amount of carbon-14 in the atmosphere against the known ages of tree rings since the 1960s. Tree rings provide a record that dates back about 14,000 years. Corals have also been used to try to calibrate the clock further […]

The head of a statue of Agrippina the Younger, Nero’s mother, has been recovered by Italian police. The terra cotta artwork was stolen more than twenty years ago from Pompeii. An art trafficker in Piacenza had reportedly tried to sell statue for a dentist. Human remains buried in twelve basalt boxes were uncovered in western Mexico […]