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.

Over here at the U.S. military’s site, there is a history of Flag Day. Among other things, it notes: The first celebration of the U.S. Flag’s birthday was held in 1877, on the 100th ...

This year, Flag Day coincides with a military parade celebrating the 250th anniversary of the U.S. Army. Flag Day is this weekend and coincides with the military parade scheduled for June 14.

Flag Day commemorates the adoption of the U.S. flag on June 14, 1777. ... June 14, amid a weekend that also celebrates Father's Day and the U.S. Army's 250th birthday.