The declaration of independence was adopted on July 4, 1776. On this day, 56 delegates to the Continental Congress ratified the declaration. The 13 American colonies formed the United States of America and declared their independence from Great Britain.
Thomas Jefferson was the main architect of the draft of the Declaration of Independence. John Adams proposed that the task of drafting the Declaration of Independence be entrusted to Jefferson. Adams wanted July 2 to be the Independence Day, but later it was agreed that July 4 would be more appropriate. The news about this momentous day in American history reached London on August 10, 1776.
A copy of the official Declaration of Independence is available at the National Arches in Washington DC.