September 13, 2019
National Programmers Day
The Day of the Programmer is an international professional day recognized in many technology companies and programming firms, that is celebrated on the 256th (hexadecimal 100th, or the 28th) day of each year (September 13 during common years and on September 12 in leap years). The number 256 was chosen because it is the number of distinct values that can be represented with an eight-bit byte.
Uncle Sam Day
Uncle Sam is supposedly linked to Samuel Wilson, a meat packer from Troy, New York, who supplied barrels of beef to the United States Army during the War of 1812. In 1989, a Congressional joint resolution designated September 13, 1989, the birthday of Samuel Wilson, as "Uncle Sam Day".