National Flag Day is celebrated in the United States on June 14 each year. This day commemorates the adoption of the United States flag in 1777, when the Continental Congress approved a design featuring thirteen stripes and a field of stars. It serves as a reminder of the nation's history and the values represented by the flag. The day encourages citizens to display the American flag proudly and participate in various activities, such as parades and ceremonies. National Flag Day is not a federal holiday, but it is recognized by many states and communities, fostering a sense of patriotism and national pride.