Tour the historic Riley farm where Rev. Josiah Henson was enslaved from 1795 to 1830. Henson’s autobiography inspired Harriet Beecher Stowe's landmark novel, Uncle Tom's Cabin. Tours on the half hour, 12-3pm. Explore an archaeology dig, make a set of marbles. “Lyrical Rhythms: Celebrating the Life of Father Henson” spoken word poetry event for all ages, 4-5pm. Refreshments. Park at Shriver Aquatic Center, 5900 Executive Blvd.