Parsing Yuengling’s MoJo

A few weeks ago I found myself at an ocean-front bar down in the Florida Keys with an hour to kill, so I ordered a Yuengling Lager on tap. The glistening pint came, reddish brown in color but lighter in taste than, say, a Sam Adams, and the waitress winked at me and said, "You know, it's the oldest brewery in America." I replied, "I had no idea, I don't know much about beer. How are sales?" "It's are number