The Flag Act of 1777 was passed by the Second Continental Congress on June 14, 1777, in response to a petition made by a Native American nation on June 3 for "an American Flag." As a result, June 14 is now celebrated as Flag Day in the United States.

Resolved, That the flag of the thirteen United States be thirteen stripes, alternate red and white; that the union be thirteen stars, white in a blue field, representing a new constellation.