Can you find another major revision to the Declaration of Independence?

Question

http://www.lessonsite.com/ArchivePages/8thAmericanHistory/Lesson19/declara.htm

Answer 1

Fill me in? What was the first revision?

Answer 2

All through the summer, in closed sessions, the delegates debated, and redrafted the articles of the new Constitution. Among the chief points at issue were how much power to allow the central government, how many representatives in Congress to allow each state, and how these representatives should be elected--directly by the people or by the state legislators.
http://www.archives.gov/national-archives-experience/charters/declaration.html