The "ultimate" pi day occurred on March 14th, 1592, at 6:53 AM and 58 seconds. When written in American-style date format, this is 3/14/1592 6:53.58. 1794: Eli Whitney patented the cotton gin. 1879: Nobel laureate Albert Einstein was born in Ulm, Germany. 1900: Congress ratified the Gold Standard Act (Nixon took us off the gold standard in 1971). 1932: George Eastman, of Eastman-Kodak fame, died. 1950: The FBI's "10 Most Wanted Fugitives" program began. 1960: The British radio telescope at Jodrell Bank in Cheshire set a new space record by making contact with the American Pioneer V spacecraft at a distance of 407,000 miles. 1971: The Rolling Stones left England for France to escape taxes. 1992: The Soviet newspaper "Pravda" suspended publication. 1994: Linux kernel version 1.0.0 was released. 2004: Daniel Tammet set the European record for memorizing and recounting pi to 22,514 digits in just over five hours