It's an "epic" first, ushering in "one of the most incredible sports stories" of our time. The result of a storied brotherly rivalry.

Leading up to Super Bowl Sunday, some sports columnists and football aficionados are having a field day with the "Harbowl."

John Harbaugh, coach of the Baltimore Ravens, will face off against his 15-months-younger brother Jim, head coach of the San Francisco 49ers.

Some football fans are complaining that the storyline is overhyped. And the brothers themselves reject it, emphasizing their bond.

Still, the super siblings will make history when their teams duke it out this weekend at the Mercedes-Benz Superdome in New Orleans.

People all over the world love a good story of a brotherly feud, whether fictional or real. We decided to take a look at some of the biggest ones.

The Bible

Cain and Abel. Jacob and Esau. Joseph and his brothers. Moses and Pharoah (they grew up together). Not to mention Isaac and Ishmael. If you're looking for brother vs. brother rivalry, no better jumping off point than the Old Testament.

Thor vs. Loki

Comics and cartoons are home to numerous good vs. evil battles represented by two archetypal brothers. See the Lion King's Mufasa vs. Scar. Or the story at the core of last year's record-breaking blockbuster "The Avengers," based on Marvel comics. Loki, Thor's evil adopted brother, tries to terrorize all of humanity.