Milestones

Ten years ago: The Soviet Union acknowledged that one of its nuclear submarines caught fire and sank off Norway the day before. The next day, the Soviet government said 42 lives had been lost.

Five years ago: Kurt Cobain, singer and guitarist for the grunge band Nirvana, was found dead in Seattle from an apparently self-inflicted gunshot wound; he was 27.

One year ago: The nation’s major cigarette makers withdrew support for a historic tobacco settlement, saying Congress had twisted their offer to help cut teen smoking into a harsh attack on their industry and sharp tax increases for American smokers.