Curse of Billy Penn
The Curse of Billy Penn (1987–2008) was a sports-related curse, urban legend, and popular explanation for the failure of major Philadelphia professional sports teams to win championships following the March 1987 construction of the One Liberty Place skyscraper, which exceeded the height of William Penn's statue atop Philadelphia City Hall. For decades prior to the construction of One Liberty Place, there had been a gentlemen's agreement in place to ensure that no building in Philadelphia would be permitted to be higher than the William Penn statue atop Philadelphia City Hall.