when did the u.s. government recognize pi day as a holiday
Pi Day Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (3/14 in the month/day format) since 3, 1, and 4 are the first three significant digits of π.[2][3] In 2009, the United States House of Representatives supported the designation of Pi Day.[4]
Uniform Monday Holiday Act The Act moved Washington's Birthday (February 22), Memorial Day (May 30), and Veterans Day (November 11) from fixed dates to designated Mondays, and established as a federal holiday Columbus Day—which had previously been celebrated in some states on October 12—to a designated Monday. The Act was designed to increase the number of three-day weekends for federal employees, a favorite goal of the travel industry.[2] Veterans Day was removed from this list of "always-on-Monday" holidays when it was moved back to its traditional date of November 11, by act of Congress in 1975,[3] effective 1978.