Wikipedia tells us that:
In the United States, Flag Day (more formally, National Flag Day) is celebrated on June 14. It commemorates the adoption of the flag of the United States, which happened that day by resolution of the Second Continental Congress in 1777.
Title 36 Sec. 110 of the US Code is the official statute on Flag Day, however it is at the President’s discretion to proclaim officially the observance.
Framingham, Massachusetts also holds a yearly Flag Day parade, as do many other towns and cities, although in recent years a shrinking turnout has prompted the town to consider eliminating the event.
Lowell Steiger, Attorney at Law (323) 852-1100