text: famous things that happened on 14th march?   the best:  it's pi day!  yep, the unofficial celebration for pi day derived from the common three-digit approximation for the number π: 3.14.  (3-14 = march 14 ... lol!  isn't that great!?)  more from wikipedia:   1794 - eli whitney is granted a patent for the cotton gin.   1900 - the gold standard act is ratified, placing united states currency on the gold standard.   1903 - theodore roosevelt issues an executive order making pelican island, in florida, a “preserve and breeding ground for native birds,” marking the birth of the national wildlife refuge system.   1923 - pete parker does the first-ever complete radio broadcast of a hockey game in the world, in regina, saskatchewan, canada.    1964 - a jury in dallas, texas finds jack ruby guilty of killing john f. kennedy assassin lee harvey oswald.  1967 - the body of president john f. kennedy is moved to a permanent burial place at arlington national cemetery.   1980 - in poland, a plane crashes during an emergency landing near warsaw, killing a 14-man american boxing team and 73 others.    1994 - timeline of linux development: linux kernel version 1.0.0 is released.   1995 - manned space mission: astronaut norman thagard becomes the first american astronaut to ride to space on-board a russian launch vehicle.    2004 - chris benoit won the world heavyweight championship at wrestlemania xx.