On what date did the Continental Congress adopt the 1777 Flag Resolution?

The Continental Congress adopted the 1777 Flag Resolution on June 14, 1777.

The resolution established the basic design of the United States flag: thirteen alternating red and white stripes and thirteen white stars on a blue field. The stripes and stars represented the thirteen states then forming the new nation. June 14 is now observed annually in the United States as Flag Day.

The 1777 resolution did not specify the arrangement of the stars, their exact shape, or many design details used today. It simply described the flag as representing a “new constellation.” Over time, the flag changed as new states joined the Union, with stars added for each state.

The current flag retains thirteen stripes but has fifty stars, one for each state. Popular tradition credits Betsy Ross with sewing the first flag, but historians have found no conclusive contemporary evidence that she created the design or made the first official flag.