8)
The nuclear reactor at Chernobyl blew up on 26 April, but news of the world’s worst nuclear accident did not emerge until two days later.
Fewer than 50 people are said to have died from exposure to radiation after the accident but many others may have contracted cancer.
Twenty years after the disaster an area around the plant the size of Greater London is still considered uninhabitable.
What year did this happen? 😕