How did the american revolution lead to an independent nation.

By issuing the Declaration of Independence, adopted by the Continental Congress on July 4, 1776, the 13 American colonies severed their political connections to Great Britain. The Declaration summarized the colonists' motivations for seeking independence. The battles of Lexington and Concord were the first battles of the American Revolution, a conflict that would escalate from a colonial uprising into a world war that, seven years later, would give birth to the independent United States of America. So basically, the Lexington and Concord battle kicked off the American Revolutionary War.  We won this war, and when we won the war we won our independence.