The Union. When I first returned to campus in the early 90s, I think The Union was the only bar operating under the same name as when I was a student in the mid-60s.
But, do you know what the name of the Union was in 1880? I can actually upload a photo of it back then, which I'll do once someone tells me what business occupied the building, and what the name of that business was.
Contrary to what my kids would tell you, I didn't personally take the photo! ;-)
The wall-bearing, brick construction of this building is one of the reasons it survived the recent fire that destroyed buildings all around it. It sustained damaged, but the infastructure of the building remained intact.
(Hint: It wasn't a bar back then. The building was actually constructed for the function it was serving in the 1880s. I believe it continued to serve this function into the early years of the 20th Century, perhaps up to around the time of WWII, but I'm not sure about the exact date when in transitioned to a bar, or if it was something different in between when it served its original purpose and its becoming a bar.)