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.”

Flags in Arizona and across the United States were to fly full-staff on June 14 in honor of Flag Day. Flag Day was started in 1885 by a Wisconsin teacher to honor the flag on the anniversary of the day the Second Continental Congress officially adopted the flag. Congress officially recognized Flag Day in 1949.

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.

It was 160 years ago that enslaved people in Galveston, Texas, learned they had been freed — after Civil War’s end and two years after President Abraham Lincoln’s Emancipation Proclamation

Juneteenth celebrates the end of slavery. See what President Trump said about it and what the holiday's flag means.

June 19, aka Juneteenth, honors the end of slavery in the United States, and is known as the country's second Independence Day.

Juneteenth is an important day in Black history as well as American history. Though Abraham Lincoln signed the Emancipation Proclamation on Jan. 1, 1863, it wasn't until June 19, 1865 that the last enslaved people in the United States were freed.

At least 1,500 "No Kings" protests nationwide started Saturday on the same day President Donald Trump scheduled a large-scale military parade in Washington, D.C. on Flag Day and his 79th birthday.