Spring has officially sprung. The days are getting longer, the nights are getting warmer and baseball season is finally underway after a historically brutal winter.
For fans of America's Pastime, it's a glorious time of year as the Detroit Tigers -- and baseball's 29 other, lesser teams -- take the field. (That's a personal opinion, of course.) For those interested in the game's history and culture, a big part of baseball's appeal are the many odd traditions that have accumulated around the sport over the years. The seventh-inning stretch. "Take Me Out to the Ballgame." The Wave. More than any other game, baseball has a rich and complex system of rules and traditions -- official and unofficial, written and unwritten.
But sifting baseball lore from baseball fact can be tricky. In his two-book series "A Game of Inches," baseball historian Peter Morris tracks down hard evidence about the actual origins of literally hundreds of aspects of the game, on and off the field. We look at the odd origin stories behind nine famous baseball traditions.