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.

A flag resolution was adopted 248 years ago, on June 14, 1777, that said, "Resolved: that the flag of the United States be made of 13 stripes, alternate red and white; that the union be 13 stars, white in a blue field, representing a new constellation," according to the Smithsonian.

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.

a national holiday that honors our nation's flag, is Saturday, June 14, amid a weekend that also celebrates Father's Day and the U.S. Army's 250th birthday. Americans have recognized the national ...

As some people across the country, joined together for a No Kings Day of Defiance protest against President Donald J. Trump on Saturday, June 14th, Trump was honoring the U.S. Army’s 250th anniversary.