Flags on U.S. government buildings will be flown at half-staff on November 22 to mark the 50th anniversary of the assassination of U.S. President John F. Kennedy.
President Barrack Obama has ordered a national day of remembrance, saying the anniversary is a day to honor Kennedy and "celebrate his enduring imprint on American history."
Kennedy was shot to death in the U.S. city of Dallas on November 22, 1963.
An official government commission determined that Lee Harvey Oswald killed Kennedy, acting alone.
However, many Americans believe the president was the victim of an unknown conspiracy.
Obama, together with former U.S. President Bill Clinton, visited Kennedy's grave at Arlington National Cemetery earlier this week.
On the anniversary, Obama will meet with representatives of the Peace Corps, which was established by Kennedy.
Based on reporting by AP and AFP