Pretty sure you meant to write 9th February....
The Seattle Museum of Flight (MOF) had a 747 First Flight 50th Anniversary Celebration scheduled for today - with special walk through of RA001 (the first 747 built), and talks by various 747 luminaries (including Brien Wygle - co-pilot on the first flight) and a special luncheon (I had tickets).
Unfortunately the Seattle area was hit yesterday with a big winter storm and lots of snow, so the celebration had to be postponed...
