Serhii Plokhy’s history of Chernobyl won the Baillie Gifford Prize for Non-Fiction 2018. He tells us what happened when reactor No 4 in the Chernobyl Nuclear Power plant, named after Vladimir Lenin, exploded after what should have been a routine maintenance test on 26 th April 1986. First to arrive where firemen, who hooked up their hoses and treated it as a routine fire, no immediate threat to the around 5000 workers and their families living...