June 10: Congress appoints a committee of five to draft a statement of independence for the colonies: Thomas Jefferson, John Adams, Benjamin Franklin, Robert R. Livingston, and Roger Sherman, with the actual writing delegated to Jefferson.

June 11 - 28: Jefferson drafts the statement and submits them to Adams and Franklin who made some changes.

July 1: A vote in Congress on a declaration of independence finds nine states in favor, South Carolina and Pennsylvania opposed, Delaware delegates divided, and New York without instructions.

July 2: With the arrival of Caesar Rodney to break the Delaware deadlock, the absence of two opposed Pennsylvania delegates, and a change in position by South Carolina, Lee's resolution on independence passes, 12 to 0, with New York abstaining.

July 1 - 4: Congress debates the draft declaration, making thirty-nine additional changes. The most significant of these are Congress's deletion of Jefferson's arguments holding King George III responsible for the continuation of the slave trade in the colonies, and his strongly worded ending, which Congress replaces with the text of Lee's resolution.

July 4: Congress votes to approve the wording of the Declaration of Independence. 

July 4 - 5: On Congress's orders, John Dunlap of Philadelphia makes printed copies of the Declaration.

July 6: The Pennsylvania Evening Post presented the first newspaper printing of the newly adopted Declaration of Independence. 

July 8: Colonel John Nixon reads the Declaration of Independence to a crowd on the State House Yard (now known as Independence Square). This is the first public reading of the Declaration of Independence.

August 2: Fifty of the 56 men signed the engrossed Declaration of Independence inside Independence Hall.

And still later . . .

Thomas McKean of Delaware was the last person to sign, possibly as late as 1777 (the actual date is disputed), though some copies of the declaration do not have McKean's name on them. 

John Trumbull’s famous painting of Jefferson, John Hancock, John Adams, Ben Franklin, and Roger Sherman does not depict the signing — it is them presenting the draft on June 28, 1776.

Sources, including for verbatim excerpts: The Library of Congress, National Park Service, National Archives, University of Central Florida