Ten years ago: President George W. Bush and retiring British Prime Minister Tony Blair held a joint news conference at the White House, during which Blair allowed not a single regret about the Iraq war alliance. World Bank President Paul Wolfowitz announced he would resign at the end of June 2007, following controversy over his handling of a pay package for his girlfriend, bank employee Shaha Riza. Trains crossed the border dividing the two Koreas for the first time in more than half a century.
Five years ago: Washington's envoy to Israel, Dan Shapiro, told the Israel Bar Association the U.S. had plans in place to attack Iran if necessary to prevent it from developing nuclear weapons. Donna Summer, 63, the "Queen of Disco," died in Naples, Florida. Frank Edward "Ed" Ray, the California school bus driver hailed as a hero for helping 26 students escape after three kidnappers buried them underground in 1976, died at age 91.
One year ago: Bernie Sanders won Oregon's Democratic presidential primary while Hillary Clinton eked out a razor-thin victory in Kentucky. Federal investigators concluded that a speeding Amtrak train that crashed in Philadelphia in May 2015, killing eight people, most likely ran off the rails because the engineer was distracted by word of a nearby commuter train getting hit by a rock. One of the Chibok girls kidnapped by Boko Haram extremists from a Nigerian boarding school in April 2014 was found with a baby and was reunited with her mother. Guy Clark, the Grammy-winning musician who mentored a generation of songwriters, died in Nashville at age 74.