The Declaration of Independence is the statement adopted on July 4, 1776. Purpose of the Declaration was to announce and explain separation from Great Britain. Thomas Jefferson was the principal author of the Declaration. Thomas Jefferson and John Adams ( both former presidents of the United States ) died on July 4, 1826, exactly 50 years after the adaptation of the Declaration of Independence. Answer: July 4, 1826 was an important date in American history. This day was the 50th anniversary of the Declaration of Independence,
