On April 26, the city's anonymity vanished forever when, during a test at 1:21 A.M., the No. 4 reactor exploded and released thirty to forty times the radioactivity of the [[atomic bomb]]s dropped on [[Hiroshima]] and [[Nagasaki]]. Thirty- one lives were lost immediately. The world first learned of history's worst nuclear accident from [[Sweden]], where abnormal radiation levels were registered at one of its nuclear facilities. | On April 26, the city's anonymity vanished forever when, during a test at 1:21 A.M., the No. 4 reactor exploded and released thirty to forty times the radioactivity of the [[atomic bomb]]s dropped on [[Hiroshima]] and [[Nagasaki]]. Thirty- one lives were lost immediately. The world first learned of history's worst nuclear accident from [[Sweden]], where abnormal radiation levels were registered at one of its nuclear facilities. |