Archaeologists have announced the discovery of a drink that was said to promise everlasting life. It was found secretly stowed away in a 2,000-year-old bronze pot in an ancient tomb in central China’s Henan province. Around 3.5 litres of the “elixir of immortality” were found in the tomb in the city of Luoyang during excavations last October. It was initially thought that the liquid was liquor...