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.

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.

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.