On 13 September 1987, two scavengers in Goiânia, Brazil broke into an abandoned radiotherapy clinic and stole a teletherapy machine containing caesium-137. They did not know what it was. They only knew it looked valuable. Over the following days, the ruptured radioactive capsule spread contamination across multiple households. The powder inside glowed blue in the dark, and people, fascinated, gathered to see it. A six-year-old girl ate a sandwich after touching it. Within weeks, four people were dead and 249 were contaminated in one of the worst radiological accidents in history. The disaster exposed systemic regulatory failures around medical radioactive sources and changed international protocols on the disposal of such equipment. Also remembered today: the mysterious 1971 death of Lin Biao, Mao’s designated successor, in a plane crash over Mongolia following an alleged coup attempt, and the 1807 premiere of Beethoven’s Mass in C major, which Prince Esterházy disliked so intensely that Beethoven left early and never received another commission from him.
