After a squad of WWE Superstars defeated the WCW/ECW Alliance once and for all at the 2001 Survivor Series, the atmosphere of WWE nevertheless remained tumultuous in December of that year, when the WWE Championship and the WCW Championship would be unified at the inaugural Vengeance pay-per-view. It was the WWE Championship itself that would determine the fate of both World Titles that night and help crown Chris Jericho the first-ever Undisputed Champion. Therefore, the grandest prize in sports-entertainment takes the No. 1 spot on WWE.com's list of "Unlikely Weapons That Impacted WWE History."

In a four-man tournament to unify the two prestigious titles, "Stone Cold" Steve Austin successfully defended his WWE Championship against Kurt Angle with a well-timed Stone Cold Stunner, while Jericho humbled The Rock with one of The Brahma Bull's own signature maneuvers, the Rock Bottom, to win the WCW Title. With The Great One and Angle out of contention, Y2J and The Rattlesnake locked up to earn the distinction of becoming WWE's first Undisputed Champion.

Though they were eliminated earlier in the night, both The Rock and Angle made their presence felt in the main event between Austin and Y2J, leveling their respective rivals in the early goings. The chaos escalated further when Jericho inadvertently took out the referee, sparking a combative ringside showdown between then-WWE co-owners Mr. McMahon and Ric Flair.

Ultimately, Austin seemed likely to topple The Ayatollah of Rock-n-Roll-ah with his own excruciating submission hold, the Walls of Jericho. Yet before the reeling referee could witness Jericho tap out in a rare display of humility, Booker T -- a five-time WCW Champion -- emerged from the crowd and clocked Austin with the WWE Championship, reigniting a rivalry with The Rattlesnake that began months earlier.

As Austin struggled to recover from that vicious assault, the nefarious Jericho capitalized, pinning Stone Cold and making WWE history in the process. In the years that followed, Jericho seldom let the WWE Universe forget that he was the first-ever Undisputed Champion, an honor that will never be held by another Superstar ever again.

Even though the two World Titles would be separated the following year with the introduction of the World Heavyweight Championship, Jericho's unification of the WCW and WWE Championships -- with the help of the WWE Title itself -- marked the beginning of a new era, changing the sports-entertainment landscape forever.