The holiday, observed on June 19, is also known as Freedom Day or Emancipation Day, and has been celebrated by communities across the country for more than a century.
But Juneteenth didn't become federally-recognized until 2021, when President Biden signed legislation adding it to the government holiday calendar after both its name and significance rose to the forefront of national conversations the previous year with the resurgence and momentum of the Black Lives Matter movement.
https://www.cbsnews.com/news/what-is-juneteenth-origin-history-name/
