Today is the day when the whole state shuts down. Alabama and Auburn play each other. This year it will be at Auburn. There are some differences from the recent past, it will be on ESPN at night. Uusally it was played in the afternoon. That meant if you had anything you needed done do it during the Iron Bowl. The city was empty. That won't happen today.
Anyway, here is some history from the Auburn side:
A VERY BRIEF HISTORY OF THE IRON BOWL
And from the Alabama side:
HE HISTORY OF THE IRON BOWL ALABAMA vs AUBURN