The Independence Day referred to here is the U.S. Independence Day also known as the "4th of July" that commemorates the adoption of the Declaration of Independence. It is a Legal U.S. Holiday that is celebrated with picnics and fireworks.
For Independence Day dates in other countries around the world, click here.
US Flag Homepage Includes the Pledge of Allegiance and information
Pledge of Allegiance includes Guidelines for Displaying the Flag
The Star Spangled Banner includes lyrics and music
John Philip Sousa American Composer, Conductor and Patriot
Includes Midi files of some of his music.