Wright Brothers Day, a United States federal observance by Presidential proclamation

Wright Brothers Day is a United States national observation. It is codified in the US Code, and commemorates the first successful flights in a heavier-than-air, mechanically propelled airplane, the Wright Flyer, that were made by Orville and Wilbur Wright on December 17, 1903, near Kitty Hawk, North Carolina. On September 21, 1959, U.S. President Dwight D. Eisenhower declared December 17 to be Wright Brothers Day pursuant to Public Law 86–304. Following a similar joint resolution enacted in 1961, the U.S. Congress made the designation permanent in 1963.

United States federal observances are days, weeks, months, or other periods designated by the United States Congress for the commemoration or other observance of various events, activities, or topics. These observances differ from federal holidays in that federal employees only receive a day free from work on holidays, not observances. Federal observances that are designated by Congress appear in Title 36 of the United States Code. Below is a list of all observances so designated. Note that not all of the laws below require that the observance be declared, in some cases, such as 36 U.S.C. § 114, Congress simply requested the president to issue a proclamation of the observance. They are published at Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1256.; Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1261.; Pub. L. 105–225, Aug. 12, 1998, 112 Stat. 1262.; Pub. L. 107–89, § 1, Dec. 18, 2001, 115 Stat. 876.; and Pub. L. 114–240, § 2(a), Oct. 7, 2016, 130 Stat. 974..

In the United States, a presidential proclamation is a statement issued by the president of the United States on an issue of public policy. It is a type of presidential directive.