We Know What Happened On “Juneteenth” 1865. What Happened On June 20th?

To mark Juneteenth today, a look at the history of the holiday, and what it means for America's story to have two federally recognized Independence Days. On Today's Show: Annette Gordon-Reed , Harvard University professor and the author of The Hemingses of Monticello: An American Family and On Juneteenth (Liveright, 2021), talks about the history of Juneteenth and how it has evolved since becoming a federal holiday.