Flag Day is a holiday celebrated on June 14 in the United States. It commemorates the adoption of the flag of the United States on June 14, 1777 by resolution of the Second Continental Congress.
Thanks to Tom the Backroads Traveller I’m adding this information below.
Read about Sarah Hinson, a teacher and principal, who started Flag Day Exercises in 1891.

On June 14, 1777, the Continental Congress replaced the British symbols of the Grand Union flag with a new design featuring 13 white stars on a field of blue and 13 red and white stripes—one for each state.

The American flag, also nicknamed as “Old Glory” or “star-spangled banner”, has changed designs over the centuries. It consists of 13 equal horizontal stripes of red (top and bottom) alternating with white, with a blue rectangle in the canton bearing 50 small, white, five-pointed stars. Each of the 50 stars represents one of the 50 states in the United States and the 13 stripes represent the original 13 colonies that became the first states in the Union.

Off with your hat, as the flag goes by!
And let the heart have its say;
you’re man enough for a tear in your eye
that you will not wipe away.
~Henry Cuyler Bunner

THE PLEDGE OF ALLEGIANCE
Officially adopted on Flag Day, June 14, 1924 (“Under God” Amendmant made by Congress in 1954)
I pledge allegiance to the flag
of the United States of America
and to the republic for which it stands;
one nation under God, indivisible,
with liberty and justice for all.
Happy 250th birthday to the U.S. Army


and
Happy 79th Birthday to the 45th and 47th President of the United States, Donald Trump.



