Flag Day, like other notable and patriotic celebrations, will be observed (once again) on June 14. Here's what we have learned about the holiday.

Celebrated each year on June 14, Flag Day commemorates the 1777 approval of a national flag design by the Continental Congress.

President Woodrow Wilson and President Calvin Coolidge each issued presidential proclamations asking for June 14 to be observed as Flag Day, according to the VA. On Aug. 3, 1949, Congress approved the national observance of Flag Day, and President Harry Truman signed it into law.

On June 14, 1775, the Continental Congress voted to replace the colonies' part-time militias with a full-time army – and after 1,300 battles and skirmishes, the Army, led by Gen. George Washington, defeated the British Empire,

Military leaders, veterans, and civic voices gather at Mount Vernon to mark Army’s 250th and launch a campaign urging Americans to serve their country.

The first, local Flag Day observances came after the Civil War and eventually a federal law designated June 14 as Flag Day in 1949, under World War I combat veteran Harry Truman. He declared in a proclamation the next year that the U.S. flag symbolizes freedom and “protection from tyranny.”