Congress adopted the Stars and Stripes as the American flag on June 14, 1777.
The colors of the flag have important meanings. Red symbolizes hardiness and valor, white symbolizes purity and innocence and blue represents vigilance, perseverance and justice.
On August 3, 1949, President Truman signed an Act of Congress that would designate June 14 of each year as National Flag Day.
“The flag of the United States has not been created by rhetorical sentences in declarations of independence and in bills of rights. It has been created by the experience of a great people, and nothing is written upon it that has not been written by their life. It is the embodiment, not of a sentiment, but of a history.”
– President Woodrow Wilson (1856-1924), in an address delivered on June 14, 1915.