Ten years ago: Ten bombs exploded in quick succession across the commuter rail network in Madrid, Spain, killing 191 people and wounding more than 2,000 in an attack linked to al-Qaida-inspired militants.

Five years ago: President Barack Obama signed a $410 billion spending package to keep the government running through Sept. 2009, even as he called it "imperfect" because of the number of earmarks it contained. A teenager, Tim Kretschmer, went on a shooting rampage starting at a school in Winnenden, Germany, killing 15 people before committing suicide.

One year ago: Former Detroit Mayor Kwame Kilpatrick, a Democrat, was convicted of a raft of crimes, including racketeering conspiracy (he was later sentenced to 28 years in prison). North Korea said it was no longer bound by the 1953 armistice that ended the Korean War, following days of increased tensions over its latest nuclear test.