Liberty Bell
The Liberty Bell, located in Philadelphia, Pennsylvania, is an American bell of great historic significance. The Liberty Bell is perhaps one of the most prominent symbols associated with early American history and the battle for American independence and freedom. Its most famous ringing, on July 8, 1776, summoned citizens for the reading of the Declaration of Independence by the Second Continental Congress. Previously, it had been rung to announce the opening of the First Continental Congress in 1774 and after the Battle of Lexington and Concord in 1775. <a href="http://en.wikipedia.org" target="new">Source</a>