That would be TODAY - National Aviation Day

NATIONAL AVIATION DAY: SPREAD THE JOY OF FLIGHT
If you're looking for a reason to hang out at your local airport or introduce a friend to aviation, National Aviation Day, Friday, August 19, provides the perfect opportunity. "Great strides have been made in aviation since Orville Wright's first flight in 1903. Today general aviation aircraft range from light sport aircraft like the Piper J-3 Cub to personal jets like the Eclipse 500," said AOPA President Phil Boyer. "In America, we also have a unique freedom that keeps GA efficient and affordable, so we certainly have many reasons to celebrate National Aviation Day." National Aviation Day was first observed in 1939, but why on August 19? It's Orville Wright's birthday. Celebrate the day by taking your friends on a tour of the airport or arranging an introductory flight with an instructor.

Too bad communities don’t have more of an active role in this event. Imagine what would happen if people visited their airport?