June 14, the anniversary of the adoption of the Stars and Stripes as the official US flag in 1777.
More example sentences
- The Flag Day ceremony was staged by the Blue Star / Gold Star Mothers of America, an organization started in 1942.
- June 14 is also Flag Day in the United States, so the public is invited to a ‘Grand Prix-View’ as Indianapolis gives a patriotic welcome to the world at 11: 30 a.m.
- In this story, Flag Day marks the anniversary of the banner's ‘birth,’ with Betsy Ross its mother.
Definition of Flag Day in:
- The British & World English dictionary