American Independence Day sources Independence Day is one of the major U.S. legal holiday. July 4, 1776, Jefferson drafted by the "Declaration of Independence" in Philadelphia at the Continental Congress formally adopted the United States solemnly declared independence from Britain. Declaration of Independence "is a great world-historic literature, through the" Declaration of Independence "The day is also a holiday commemorating the American people forever, as the U.S. Independence Day. Time: July 4, America's most important non-religious holiday, the equivalent of other countries, "National Day." Americans are generally a direct call "on July 4."