[El Gato]

It's not even correct. Anyone born after the Articles of Confederation would be a natural born citizen of the United States. Arguably the same would be true of anyone born in the US after July 4, 1776, when the 13 United States of America, declared themselves independent of the United Kingdom. But it doesn't matter which one chooses. Two Presidents were born between the articles of confederation being ratified (all states) (March 1, 1781), and the ratification of the Constitution (9 states) (June 21, 1788). Martin Van Buren born December 5, 1782, and Zachary Taylor born November 24, 1784. None were born after the declaration and before the AoC were ratified.

They were *both* natural born citizens and citizens at the time of the adoption of the Constitution.

James Polk was the first President born after the adoption of the Constitution, so the first to *only* be a Natural born citizen, and not one at the time of adoption of the Constitution.

But perhaps that's only of academic interest, since Van Buren and Taylor were eligible, whether one counts them as natural born or not.

[bushpilot1]

We really do not know the definition of natural born citizen.

Perhaps this author defines the term when he states Polk is the first natural born citizen elected President.

Polks parents were born in the Unites States.

Polk was born in the United States.