On March 1, 2012 when Serbia formally became a candidate for statehood in the European Union, it had been over 50 years since a state was added to the U.S. So from an American standpoint, watching the E.U. expand “in real time” from “across the pond” might be like a person in our solar system watching the unfolding of a new solar system light-years away and thinking, “So that is how it must have looked when it happened here.” Of course, the accession of additional states in the E.U. reflects the distinct time and culture of twentieth and twenty-first century Europe rather than of the world in the late eighteenth century. Even so, certain commonalities can be discerned.
The complete essay is at Essays on Two Federal Empires.
