When was Juneteenth made an official holiday?

When was Juneteenth made an official holiday?

1986

How long has Juneteenth been celebrated as a holiday?

Juneteenth has become a federal holiday in the U.S some 156 years since the liberation of the last enslaved Black people in Texas. President Joe Biden signed a resolution on Thursday proclaiming the first national holiday declared since then-President Ronald Reagan named Martin Luther King Jr. Day a holiday in 1983.