The U.S. Army was founded on 14 June 1775, when the Continental Congress authorized enlistment of expert riflemen to serve the
United Colonies for one year.

In the United States, Flag Day is celebrated on June 14. … In 1916, President Woodrow Wilson issued a proclamation that officially established June 14
as Flag Day; on August 3, 1949, National Flag Day was established by an
Act of Congress. Flag Day is not an official federal holiday.

Thomas Woodrow Wilson
(December 28, 1856 – February 3, 1924)