On the Treaty and Ultimate Coalition Between Odo of Aquitaine (Which at that Point Was a Distinct Kingdom) and Carolingian Leader, Charles "the Hammer" Martel

Let's just put it this way. If these two men didn't put their differences aside in an effort to stop the marauding Muslim forces of the Omayyad Dynasty at Tours we'd all likely be bowing to Mecca five times a day, stoning adulterous women to death, and pushing gays off of rooftops. That fucking important it was.