The brain was discovered inside a skull found at Heslington near York A human brain, believed to be the oldest ever discovered, may have been preserved for over 2,000 years by mud, archaeologists have said. The organ was found inside a decapitated skull at an Iron Age dig site near York in 2008. Tests on the remains suggested they were from the 6th Century BC, making them about 2,600 years old. York Archaeological Trust said the skull had been buried in wet, clay-rich ground providing an oxygen-free burial. They said the burial location could have helped conserve the brain,...