Pan American World Airways (Pan Am) was founded on October 27, 1927 as America’s first international airline. The small company began flying air mail between Key West, Florida and Havana, Cuba. Pan Am’s most famous flight of World War II was carrying President Roosevelt to Africa to meet with Stalin & Churchill. The President flew on his birthday and was enjoying birthday cake aboard a Pan Am B314 Clipper.
Pan American Aviation Day is a United States Federal Observance Day observed December 17. According to 36 U.S.C. § 134, on Pan American Aviation Day the president calls on "all officials of the United States Government, the chief executive offices of the States, territories, and possessions of the United States, and all citizens to participate in the observance of Pan American Aviation Day to further, and stimulate interest in, aviation in the American countries as an important stimulus to the further development of more rapid communications and a cultural development between the countries of the Western Hemisphere." The date commemorates the first successful flight of a mechanically propelled heavier-than-air craft, accomplished on December 17, 1903, by the Wright brothers near Kitty Hawk, North Carolina.
§134. Pan American Aviation Day
The President may issue each year a proclamation —
(1) designating December 17 as Pan American Aviation Day; and
(2) calling on all officials of the United States Government, the chief executive offices of the States, territories, and possessions of the United States, and all citizens to participate in the observance of Pan American Aviation Day to further, and stimulate interest in, aviation in the American countries as an important stimulus to the further development of more rapid communications and a cultural development between the countries of the Western Hemisphere.
(Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1261.)
Source: wikipedia.org | state.gov | www.gpo.gov