History as a discipline often requires revisionism to accommodate the passage of time and a reflection of facts as they become available.
Once, we thought Christopher Columbus discovered the new world; now that notion is scoffed at.
And sports history is no different.
The Pete Carroll era, as any good Trojan fan will be happy to tell you, was a golden time in USC football history.
Yet, it didn't make its mark unblemished.
And that is where the passage of time and the possibility of facts yet to be discovered come into play.
What won't change, despite the best efforts of the NCAA, is the fact that USC was a ridiculous powerhouse during the Carroll era.
If not for some bewildering losses during the run, the Trojans might have had more national championships than the two AP titles they claim.
However, the specter of impropriety looms over the Carroll era, and try as one might, there is no getting around the doggone thing.
How history looks at the Pete Carroll era depends on who is doing the viewing.
Possessing an MA in history, this author will try to put aside any bias and look at the Pete Carroll era from an objective point of view.
And one that will be shared by history itself.