Juneteenth is a holiday celebrated on June 19 to commemorate the freedom of those who were enslaved in the United States.
The holiday was first celebrated in Texas in 1865, after the Emancipation Proclamation in 1862.
The celebratory colors of Juneteenth are the same as those of the American flag. This symbolizes that those who had been enslaved and their descendants were true Americans. According to Mental Floss, the star in the middle is in honor of Texas and the bursting star on the horizon represents new people with a new way of life.