From History.com:
On June 14, 1777, the Second
Continental Congress took a break from writing the Articles of
Confederation and passed a resolution stating that “the flag of the
United States be 13 stripes, alternate red and white,” and that “the union be
13 stars, white in a blue field, representing a new constellation.”
Over 100 years later, in 1916, President
Woodrow Wilson marked
the anniversary of that decree by officially establishing June 14 as
Flag Day.
# # #