Philadelphia, Pennsylvania, "the birthplace of United States" hosts the first, and perhaps the most historic birthday celebration. This is where the Declaration of Independence was signed and it's the home of the Liberty Bell, Independence Hall, Betsy Ross, and other sites rich in history.
The U.S. Independence Day commemorates the formal adoption by the Continental Congress of the Declaration of Independence on July 4, 1776, in Philadelphia. Although the signing of the Declaration was not completed until August, the July 4 holiday is recognized as the official anniversary of United States independence and is celebrated throughout the country. The holiday was first observed in Philadelphia on July 8, 1776, at which time the Declaration of Independence was read aloud, city bells rang, and bands played. It was not declared a legal holiday, however, until 1941. The Philadelphia festivities are now enjoyed by 4 million people.
In 2011, the Welcome America Festival celebrates with music, neighborhood festivals, outdoor movies, concerts, historic re-enactments, food, parades, and fireworks, and more, for two weekends - June 26-27, and July 4 ending with a concert and fireworks finale at night on July 4.