June 14, 1777
The Second Continental Congress (not to be confused with the FIRST Continental Congress) resolved that the Stars and Stripes would be the official flag of the United States of America on this day in 1777. Although we often associate the Betsy Ross creation with our first flag (you know the one with the circle pattern of stars?), it was actually the flag below that Congress voted in. The stars are in a 3-2-3-2-3 pattern (it sounds a bit like a soccer formation to me) and was designed by one of the Congressmen.