Who was the first president born in the independent United States?

The answer is Martin Van Buren because he was the first U.S. president to be born after the signing of the Declaration of Independence, in 1782. Previous presidents, such as George Washington and Thomas Jefferson, were born before the United States became an independent nation and before the Revolutionary War took place. Van Buren's birth in 1782, after American independence was secured, marks him as the first president to be born in the independent United States.