Funny, I grew up in DC from 1951, and visited Baltimore uncounted times and never ever heard it called charm city. Many other things, but never Charm City. Is this a new thing, like Naggin’s NO Chocolate City?
There’s a good mystery writer with stories based in Baltimore. She refers to it as “Charm City,” but that’s the only place I’ve heard it.
I absolutely adore parts of Baltimore — it’s one of my favorite cities. That said, I have also never been more scared in my life (two times) than there. And, I grew up near Oakland and have traveled alone through many third world countries. Nothing came close to my two experiences in Baltimore.