The French woman documented as the world's oldest person at 122 may be a fraud, according to Russian researchers. A 2018 study suggests that the woman known as Jeanne Calment was actually Jeanne's daughter, Yvonne, who allegedly assumed her mother's identity after her death in 1934 in order to not have to pay the inheritance tax. When "Jeanne" died in 1997 at the supposed age of 122 and 164 days, she was actually thought to have been just 99, the researchers claim. Gerontologist Valery Novoselov, who initially called for the investigation into Jeanne's age, said he first became suspicious because...