Which two Declaration of Independence signers died on the same day in 1826, exactly 50 years after adoption?

Thomas Jefferson and John Adams died on the same day in 1826, exactly 50 years after the Declaration of Independence was adopted.

Both men died on July 4, 1826, the fiftieth anniversary of the Declaration's adoption. Jefferson died at Monticello in Virginia, while Adams died at his home in Quincy, Massachusetts. Their deaths became one of the most striking coincidences in the history of the American founding.

Jefferson was the Declaration's principal drafter, and Adams was a leading advocate for independence and a member of the Committee of Five. Both later served as president: Adams was the second president, and Jefferson was the third.

They had once been close political allies, later became opponents, and eventually renewed their friendship through correspondence. Their deaths are connected to the Declaration's anniversary, but they were not the only major founders to die in 1826; Charles Carroll, the last surviving signer, lived until 1832.