This year, Flag Day coincides with the U.S. Army’s 250th anniversary, marked by a large military parade in Washington, D.C., led by President Donald Trump, whose birthday is also on June 14.

This Father's Day weekend brings another, more obscure holiday in the U.S.: Flag Day. Here's what the holiday is and how and when it started.

Flag Day is celebrated on June 14 each year, commemorating the adoption of the American flag's design in 1777. While not a federal holiday, Flag Day 2025 falls on a Saturday.

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.

Congress officially recognized Flag Day in 1949. This year, Flag Day also lines up with a massive military parade in Washington, D.C., celebrating the U.S. Army's 250th anniversary.

While this may be common knowledge, Public Law 94-344, known as the Federal Flag Code, may not be as widely known. The code dictates that the flag is to be treated with respect and proper etiquette.

The nation observes the Flag Day that commemorates the adoption of the U.S. flag on this day in 1777 by resolution of the Second Continental Congress. (Photo by Alex Wong/Getty Images) ...

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.