Interesting Facts About the Kennedy Half Dollar:
-- After President Kennedy's assassination on November 22, 1963, there was strong national support for a commemorative coin.
-- Five days after JFK's death the half dollar was decided upon. Just two months later the new Kennedy half dollar coins were in production.
-- The original 1964 "Kennedy Memorial" silver half dollar is the most collected coin date in history.
-- It was the last large U.S. circulation coin struck in traditional 90% silver. When silver's intrinsic value rose in 1965, the Kennedy's content was reduced to 40% silver. Later issues were struck in copper-nickel.