Shown below are the 27 legal flags flown throughout our history. By law, a star is added to the U.S. Flag on the 4th of July following the admission of a State(s) to the Union.
Contrary to popular belief, the first official U.S. Flag was not the Betsy Ross Flag (13 stars in a circle) but the staggered star pattern.
It is important to note that no U.S. Flag ever becomes obsolete. Each US flag shown below is still a legal flag and may be flown at anytime.