Pennsylvania, constituent state of the u.s., one of the original 13 american colonies. To the east by new york and new. It is bounded to the north by lake erie and new york;
Pennsylvania is nicknamed “the keystone state,” which points to its key role in the history of the united states. At the time it was the most ethnically and religiously diverse of the. Pennsylvania is the second state, after delaware, to ratify the constitution of the united states of america.
The term “keystone” comes from architecture and refers to the. Its iconic flag, major cities like philadelphia and pittsburgh, and what makes the keystone state famous, from historical.