By law and custom, not until it has a government and a head of state
Announcement by the first government
of Hanson’s election
Articles of Confederation sets "first Monday in November" as launch date of the new government
Delegates to new government convene in Philadelphia on November 5, 1781
As first act, delegates elect Maryland Delegate John Hanson as president and head of state. There were no other candidates.
With a government and head of state, the United States now comes into being as a unified nation
The government legislates the title "President of the United States of America" for the new nation's presidents
The first government becomes known colloquially as "The Confederation Congress" causing much confusion today with the earlier non-government Continental Congresses