May 20

1927 - Charles Lindbergh starts the first nonstop solo flight across the Atlantic.
1932 - Amelia Earhart starts the first nonstop solo flight by a woman across the Atlantic.
1960 - Actor John Billingsley (Doctor Phlox) is born.
1964 - Robert Woodrow Wilson and Arno Penzias discover cosmic microwave background radiation.
1999 - Brian Jones and Betrand Picard land the first nonstop round the world balloon flight.