Vagaries of Memory

Do you ever look back at a memory and wonder "Did that really happen?"

Mine was from college.  The pot-smoking hippie crowd used to hold a variety of strange concerts.  One night, a bluegrass band played one of the best shows I've ever heard, in this tiny rebuilt pine-scented barn in the middle of the Great Lawn.  And in my memory, they were Old Crow Medicine Show (a now-extremely-famous modern bluegrass band). 

Later, I thought that couldn't possibly be right.  Why on earth would they play a college town, population 2500?  But I just asked the Internet. And they were really there.  That really happened.