2. Unfortuneately, it has become a largely significant date in the eyes of companies ( Hallmark, Lingere stores, Chocolates stores, Jewelry shops ) to make large amounts of money, by selling ridiculously over-priced items. Even though the giving of jewelry may seem very common, it has only been around for appox. 20 or so years.
3. Also known as Saint Valentine's Day Massacre; because of the shooting of 6 of George 'Bugs' Moran's gangmembers by five members of Al Capone's gang in Chicago, Illinois, in 1929