Dating the Hogs

Well, not that kind of date, if that is what you were thinking, haha. But date as in numbers, a specific point in time since the big bang. This week's question involves a red letter date in Razorback history, the date the running Razorback first appeared on our helmet. Do you know which year it was?  If you think you do or even if you just want to guess, please vote below and look for the answer in the comment section. Come on expat readers, don't disappoint us here. This is the easiest question of the summer thus far! Not to put any pressure on you or anything like that, haha.