March 2, 2012 at 10:24 AM ET
Yes, there was a real man behind the pen name "Dr. Seuss," and Theodor Seuss Geisel was born on this day in 1904. He died of throat cancer in 1991, but his stories live on wherever there are children or adults with childlike hearts.
Seuss' latest movie, "The Lorax," opens today, but we want to know your favorite Seuss movie of all time. Vote in our poll, and tell us why you made your pick on Facebook.