June 14
https://www.history.com/this-day-in-history/june-14
June 14, 1777: During the American Revolution, the Continental Congress adopts a resolutionstating that “the flag of the United States be thirteen alternate stripes red and white” and that “the Union be thirteen stars, white in a blue field, representing a new Constellation.” The national flag, which became known as the “Stars and Stripes,” was based on the “Grand Union” flag, a banner carried by the Continental Army in 1776 that also consisted of 13 red and white stripes.
Henry Ossian Flipper, born into slavery in Thomasville, Georgia, in 1856, becomes the first African American cadet to graduate from the United States Military Academy at West Point, New York on June 14, 1877.
On June 14, 1917, as the soldiers of the American Expeditionary Force (AEF) travel to join the Allies on the battlefields of World War I in France, United States President Woodrow Wilsonaddresses the nation’s public on the annual celebration of Flag Day.
On June 14, 1775, the Continental Congressauthorizes the enlistment of expert riflemen to serve the United Colonies for one year. This launches the U.S. Army as America's first national institution, more than a year before the Declaration of Independence is published on July 4, 1776.