From Quaker house parties to the black-and-brown-striped flag.
The push is part of the plan to be the official city of USA250, the semiquincentennial celebration of the nation's founding. Though it's still nine years away, planning has begun. In November 2016, Congress approved a law creating a new commission to facilitate everything, and the 33-member body will hold meetings at Independence Hall while seeking input from the public. There's also an initiative called Food250, which is co-chaired by High Street's Ellen Yin and Eli Kulp.
It'll be the last Society gathering at the Waldorf Astoria, at least for a while.
Both Barack Obama and Tom Wolf also spurned the local Democratic tradition.