Who owns history?

When it comes to convention center slogans, Boston won when it got Philadelphia to drop its "Where Conventions Make History" slogan (Philly went with "Where Bigger Meets Better" instead). Boston officials said the former slogan was too similar to its "Boston. Making Convention History." I love this quote from a Boston official:

"I guess the rivalry continues," [MCCA executive director James E. Rooney] said. "They got Ben Franklin from us; we beat them in the Super Bowl; and now we get our slogan back. I am thinking of putting a huge bell in the front lobby."