It's very easy to chalk up certain facets of our lives to just being "the way it's always been." From daylight savings time to time zones, most of us don't even give a second thought to the meaning ...

Log-in to bookmark & organize content - it's free! The 1960s folk band "The Swingin' Six" stars in a U.S. Postal Service public service announcement explaining the zip code system, which was first ...