Pi day (3/14) was created in 1988 by Larry Shaw, a physicist at the San Francisco Exploratorium. Some refer to Shaw as the Prince of Pi.
In 2009, the U.S. House of Representatives passed a non-binding resolution (HRES 224) which proclaimed 3/14 as National Pi Day. Do you think that former Speaker Nancy Pelosi (D-CA 6th) really likes Pi or just wanted to give some sweet stuff to her constituent? Perhaps she wanted a House warming gift for a Tea Party?