National Anthem DayMarch 3, 2012 is the 81st anniversary of the bill that designated "The Star-Spangled Banner" as our national anthem. It was adopted by the U.S. Senate and went to President Herbert Hoover for his signature; he signed it that same day.March 3, 2012 is the 81st anniversary of the bill that designated "The Star-Spangled Banner" as our national anthem. It was adopted by the U.S. Senate and went to President Herbert Hoover for his signature; he signed it that same day.REUTERS/Sarah ConardInternational Fanny Pack DayBelieve it or not, the second Saturday of March is a day of tribute to the fanny pack, that ubiquitous strap-on sack that "for years has been used to carry around items for easy access," according to event planners. At the Oscars, though, you didn't see tBelieve it or not, the second Saturday of March is a day of tribute to the fanny pack, that ubiquitous strap-on sack that "for years has been used to carry around items for easy access," according to event planners. At the Oscars, though, you didn't see that kind of fanny pack anywhere.REUTERS/Gary HershornThe Godfather Film Premiere AnniversaryOn March 15, 1972, the picture that many consider the greatest American film ever made premiered, directed by Francis Ford Coppola and based on the novel by Mario Puzo. The film depicted the fortunes of the Corleone crime family and won three Oscars, forOn March 15, 1972, the picture that many consider the greatest American film ever made premiered, directed by Francis Ford Coppola and based on the novel by Mario Puzo. The film depicted the fortunes of the Corleone crime family and won three Oscars, for Best Picture, Best Adapted Screenplay and Best Actor (Marlon Brando).Paramount PicturesOrganize Your Home Office DaySome workaholics actually consider this the best day of the year (other than National Clean Off Your Desk Day). The holiday is celebrated annually; this year the day of festivities is March 23.Some workaholics actually consider this the best day of the year (other than National Clean Off Your Desk Day). The holiday is celebrated annually; this year the day of festivities is March 23.iStockphotoNational Horse Protection DayCelebrated on March 1, this day was created "to raise awareness through public education about the plight of horses in America -- the abuse, neglect, homelessness and slaughter," and to promote adoption events for these magnificent animals around the natiCelebrated on March 1, this day was created "to raise awareness through public education about the plight of horses in America -- the abuse, neglect, homelessness and slaughter," and to promote adoption events for these magnificent animals around the nation.REUTERS/Todd KorolNational Pi DayMath enthusiasts around the world have their very own day: Pi Day, celebrated on March 14th. Why March 14? Because pi = 3.1415926535… Pi, Greek letter (π), is the symbol for the ratio of the circumference of a circle to its diameter. Thanks to computers,Math enthusiasts around the world have their very own day: Pi Day, celebrated on March 14th. Why March 14? Because pi = 3.1415926535… Pi, Greek letter (π), is the symbol for the ratio of the circumference of a circle to its diameter. Thanks to computers, Pi has been calculated to over 1 trillion digits past the decimal, though it continues infinitely without repeating. The symbol for pi was first used in 1706 by William Jones.iStockphotoNational Pig DayMarch 1 is a day to honor the porker -- and to celebrate one of "humankind's most intelligent and useful domesticated animals," according to its founders.March 1 is a day to honor the porker -- and to celebrate one of "humankind's most intelligent and useful domesticated animals," according to its founders.Dan Kitwood/Getty ImagesRattlesnake RoundupIf it's the second weekend in March, it's the World's Largest Rattlesnake Round-Up, one of several in Texas every year. Originally begun by ranchers in 1958 to thin out the snakes plaguing them and their livestocks, the round-up also features snake-handliIf it's the second weekend in March, it's the World's Largest Rattlesnake Round-Up, one of several in Texas every year. Originally begun by ranchers in 1958 to thin out the snakes plaguing them and their livestocks, the round-up also features snake-handling demonstrations of all kinds. (Folks, don't try this trick at home.)REUTERS/Jessica RinaldiRead Across America DayMarch 2 is the National Education Association's Read Across America Day, with this year's campaign showcasing the Lorax book as well as NBC/Universal's "The Lorax" (also opening March 2). According to organizers, "Read Across America will develop new evenMarch 2 is the National Education Association's Read Across America Day, with this year's campaign showcasing the Lorax book as well as NBC/Universal's "The Lorax" (also opening March 2). According to organizers, "Read Across America will develop new event ideas and materials to help make this a Seussational celebration."Getty ImagesTelephone Invention AnniversaryMarch 10 marks the 136th anniversary of the world's first phone call. The location: Boston. The players: Alexander Graham Bell, age 29, and his assistant, Mr. Watson. Says Bell's journal from March 10, 1876: "I then shouted into M [the mouthpiece] the folMarch 10 marks the 136th anniversary of the world's first phone call. The location: Boston. The players: Alexander Graham Bell, age 29, and his assistant, Mr. Watson. Says Bell's journal from March 10, 1876: "I then shouted into M [the mouthpiece] the following sentence: 'Mr. Watson, come here – I want to see you.' To my delight he came and declared that he had heard and understood what I said."Library of Congress