One time, at an of Montreal concert in Lancaster, PA, Jackson of the band Grand Buffet told me that the ice cream sundae was invented in Lancaster by Ben Franklin. He also invented a particularly silly way to punch. Supposedly, if you go to the mayor of Lancaster on the 4th of July and punch him in this manner, it is an honor. Additionally, Lancaster has a curfew. 

It is worth noting that the postcard featuring the Amish women misspells the word Mennonite.