On this day, June 24 ...

2004: Federal investigators question President George W. Bush for more than an hour in connection with the news leak of CIA operative Valerie Plame's identity.

Also on this day: 

  • 1947: What's regarded as the first modern UFO sighting takes place as private pilot Kenneth Arnold, an Idaho businessman, reports seeing nine silvery objects flying in a "weaving formation" near Mount Rainier in Washington.
  • 1957: The U.S. Supreme Court, in Roth v. United States, rules 6-3 that obscene materials are not protected by the First Amendment.
  • 1983: The space shuttle Challenger — carrying America's first woman in space, Sally K. Ride — coasts to a safe landing at Edwards Air Force Base in California.
  • 1992: The Supreme Court, in a 5-4 decision, strengthens its 30-year ban on officially sponsored worship in public schools, prohibiting prayer as a part of graduation ceremonies.
  • 1997: The U.S. Air Force releases a report on the so-called "Roswell Incident," suggesting the "alien bodies" that witnesses reported seeing in 1947 were actually life-sized dummies. 
  • 2004: New York’s Court of Appeals rules the state’s death penalty unconstitutional.
  • 2009: South Carolina Gov. Mark Sanford admits he had secretly flown to Argentina to visit a woman with whom he was having an affair and says he would resign as head of the Republican Governors Association.
  • 2012: Mohamed Morsi, a member of the Muslim Brotherhood, is announced as the winner of Egypt’s presidential elections.
  • 2016: British Prime Minister David Cameron resigns after the Brexit vote.