It’s been 160 years since the last enslaved people in the United States heard the news they were free. What was once celebrated on a city or state level is now celebrated nationwide as a federal holiday on June 19, also known as Juneteenth. In the spirit of the holiday, Cambridge’s LabCentral is hosting a special exhibit and panel discussion, centering local Black artists and community activists in an event called “Juneteenth: Freedom & Form.” We speak with one of the artists and the event organizer.