I recently learned about Juneteenth. For anyone not familiar:
Juneteenth is the oldest nationally celebrated commemoration of the ending of slavery in the United States. From its Galveston, Texas origin in 1865, the observance of June 19th as the African American Emancipation Day has spread across the United States and beyond
What is the etiquette regarding observing Juneteenth? I'd like to know whether I should wish people a Happy Juneteenth, whether I should wish it to black people only. I don't want to risk perpetuating its reputation as "a 150-year-old tradition that no one’s heard about" and would like to acknowledge it without coming off as a white savior, if that's possible.
If it's relevant, while I pass as white, I'm Latino and a first-generation American. The context would be any random person I interact with (say on my commute, or at a grocery/convenience store), similar to wishing someone "Happy Holidays," "Happy 4th" (of July), or "have a good weekend."